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12131120130 = 2351976313253
BaseRepresentation
bin10110100110001001…
…00011010000000010
31011022102211202100120
423103010203100002
5144321031321010
65323432001110
7606422551113
oct132304432002
934272752316
1012131120130
115165779118
122426830196
1311b43830bc
148311d020a
154b0020e70
hex2d3123402

12131120130 has 64 divisors (see below), whose sum is σ = 29317863168. Its totient is φ = 3212455680.

The previous prime is 12131120129. The next prime is 12131120143. The reversal of 12131120130 is 3102113121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3727584 + ... + 3730836.

It is an arithmetic number, because the mean of its divisors is an integer number (458091612).

Almost surely, 212131120130 is an apocalyptic number.

12131120130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12131120130 is an abundant number, since it is smaller than the sum of its proper divisors (17186743038).

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

12131120130 is a wasteful number, since it uses less digits than its factorization.

12131120130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4091.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 12131120130 its reverse (3102113121), we get a palindrome (15233233251).

The spelling of 12131120130 in words is "twelve billion, one hundred thirty-one million, one hundred twenty thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 197 394 591 631 985 1182 1262 1893 1970 2955 3155 3253 3786 5910 6310 6506 9465 9759 16265 18930 19518 32530 48795 97590 124307 248614 372921 621535 640841 745842 1243070 1281682 1864605 1922523 2052643 3204205 3729210 3845046 4105286 6157929 6408410 9612615 10263215 12315858 19225230 20526430 30789645 61579290 404370671 808741342 1213112013 2021853355 2426224026 4043706710 6065560065 12131120130