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12112300131 = 317376418813
BaseRepresentation
bin10110100011111001…
…10000100001100011
31011021010102121011120
423101330300201203
5144301222101011
65321520343323
7606103565241
oct132174604143
934233377146
1012112300131
1151560943a8
122420474b43
1311b04c3ac9
1482c8d1791
154ad554a06
hex2d1f30863

12112300131 has 16 divisors (see below), whose sum is σ = 17561875104. Its totient is φ = 7394471424.

The previous prime is 12112300127. The next prime is 12112300147. The reversal of 12112300131 is 13100321121.

It is a happy number.

It is not a de Polignac number, because 12112300131 - 22 = 12112300127 is a prime.

It is a super-2 number, since 2×121123001312 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12112300131.

It is not an unprimeable number, because it can be changed into a prime (12112300171) 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, 3207520 + ... + 3211293.

It is an arithmetic number, because the mean of its divisors is an integer number (1097617194).

Almost surely, 212112300131 is an apocalyptic number.

12112300131 is a deficient number, since it is larger than the sum of its proper divisors (5449574973).

12112300131 is a wasteful number, since it uses less digits than its factorization.

12112300131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6418870.

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

Adding to 12112300131 its reverse (13100321121), we get a palindrome (25212621252).

The spelling of 12112300131 in words is "twelve billion, one hundred twelve million, three hundred thousand, one hundred thirty-one".

Divisors: 1 3 17 37 51 111 629 1887 6418813 19256439 109119821 237496081 327359463 712488243 4037433377 12112300131