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131131323330 = 23572921532237
BaseRepresentation
bin111101000100000001…
…0010011001111000010
3110112110202201102110220
41322020002103033002
54122024104321310
6140124011203510
712321361600050
oct1721002231702
9415422642426
10131131323330
1150681239097
12214b7746596
13c49a3a1917
1464bd83d1d0
153627335670
hex1e880933c2

131131323330 has 64 divisors (see below), whose sum is σ = 372077072640. Its totient is φ = 28939325184.

The previous prime is 131131323329. The next prime is 131131323331. The reversal of 131131323330 is 33323131131.

It is an interprime number because it is at equal distance from previous prime (131131323329) and next prime (131131323331).

It is a self number, because there is not a number n which added to its sum of digits gives 131131323330.

It is not an unprimeable number, because it can be changed into a prime (131131323331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10760029 + ... + 10772208.

It is an arithmetic number, because the mean of its divisors is an integer number (5813704260).

Almost surely, 2131131323330 is an apocalyptic number.

131131323330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131131323330 is an abundant number, since it is smaller than the sum of its proper divisors (240945749310).

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

131131323330 is a wasteful number, since it uses less digits than its factorization.

131131323330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21532283.

The product of its (nonzero) digits is 1458, while the sum is 24.

Adding to 131131323330 its reverse (33323131131), we get a palindrome (164454454461).

The spelling of 131131323330 in words is "one hundred thirty-one billion, one hundred thirty-one million, three hundred twenty-three thousand, three hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 29 30 35 42 58 70 87 105 145 174 203 210 290 406 435 609 870 1015 1218 2030 3045 6090 21532237 43064474 64596711 107661185 129193422 150725659 215322370 301451318 322983555 452176977 624434873 645967110 753628295 904353954 1248869746 1507256590 1873304619 2260884885 3122174365 3746609238 4371044111 4521769770 6244348730 8742088222 9366523095 13113132333 18733046190 21855220555 26226264666 43710441110 65565661665 131131323330