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131302202120 = 2355367924403
BaseRepresentation
bin111101001001000111…
…0001001101100001000
3110112220200020222002222
41322102032021230020
54122401330431440
6140152553513212
712325535205665
oct1722216115410
9415820228088
10131302202120
1150759740931
1221544a12808
13c4c6900c2b
1464d8400a6c
15363733b2b5
hex1e92389b08

131302202120 has 64 divisors (see below), whose sum is σ = 305497033920. Its totient is φ = 50760762624.

The previous prime is 131302202081. The next prime is 131302202149. The reversal of 131302202120 is 21202203131.

It is a super-2 number, since 2×1313022021202 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 320162 + ... + 604241.

It is an arithmetic number, because the mean of its divisors is an integer number (4773391155).

Almost surely, 2131302202120 is an apocalyptic number.

131302202120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131302202120 is an abundant number, since it is smaller than the sum of its proper divisors (174194831800).

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

131302202120 is a wasteful number, since it uses less digits than its factorization.

131302202120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924534 (or 924530 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 131302202120 its reverse (21202203131), we get a palindrome (152504405251).

The spelling of 131302202120 in words is "one hundred thirty-one billion, three hundred two million, two hundred two thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 53 67 106 134 212 265 268 335 424 530 536 670 1060 1340 2120 2680 3551 7102 14204 17755 28408 35510 71020 142040 924403 1848806 3697612 4622015 7395224 9244030 18488060 36976120 48993359 61935001 97986718 123870002 195973436 244966795 247740004 309675005 391946872 489933590 495480008 619350010 979867180 1238700020 1959734360 2477400040 3282555053 6565110106 13130220212 16412775265 26260440424 32825550530 65651101060 131302202120