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131100230311320 = 23356471688565563
BaseRepresentation
bin11101110011110000100110…
…101010000101110110011000
3122012012001121110110002020110
4131303300212222011312120
5114140421232424430240
61142454340411524320
736420451631066544
oct3563604652056630
9565161543402213
10131100230311320
1138855328264556
1212854129a596a0
13581c910c9b33a
1424533dc098a24
15102534038ec80
hex773c26a85d98

131100230311320 has 64 divisors (see below), whose sum is σ = 393908574769920. Its totient is φ = 34906027297664.

The previous prime is 131100230311277. The next prime is 131100230311327. The reversal of 131100230311320 is 23113032001131.

It is a happy number.

It is a super-2 number, since 2×1311002303113202 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131100230311327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 844205142 + ... + 844360421.

It is an arithmetic number, because the mean of its divisors is an integer number (6154821480780).

Almost surely, 2131100230311320 is an apocalyptic number.

131100230311320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131100230311320 is an abundant number, since it is smaller than the sum of its proper divisors (262808344458600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131100230311320 is a wasteful number, since it uses less digits than its factorization.

131100230311320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1688566224 (or 1688566220 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 131100230311320 its reverse (23113032001131), we get a palindrome (154213262312451).

The spelling of 131100230311320 in words is "one hundred thirty-one trillion, one hundred billion, two hundred thirty million, three hundred eleven thousand, three hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 647 1294 1941 2588 3235 3882 5176 6470 7764 9705 12940 15528 19410 25880 38820 77640 1688565563 3377131126 5065696689 6754262252 8442827815 10131393378 13508524504 16885655630 20262786756 25328483445 33771311260 40525573512 50656966890 67542622520 101313933780 202627867560 1092501919261 2185003838522 3277505757783 4370007677044 5462509596305 6555011515566 8740015354088 10925019192610 13110023031132 16387528788915 21850038385220 26220046062264 32775057577830 43700076770440 65550115155660 131100230311320