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12143020131 = 32112343124021
BaseRepresentation
bin10110100111100011…
…11100100001100011
31011100021020100002100
423103301330201203
5144332103121011
65324535021443
7606625653024
oct132361744143
934307210070
1012143020131
115171466830
12242a80a883
1311b698b718
14832a0ac4b
154b10c1d56
hex2d3c7c863

12143020131 has 48 divisors (see below), whose sum is σ = 20430888192. Its totient is φ = 6875668800.

The previous prime is 12143020103. The next prime is 12143020147. The reversal of 12143020131 is 13102034121.

12143020131 is a `hidden beast` number, since 1 + 2 + 1 + 430 + 201 + 31 = 666.

It is not a de Polignac number, because 12143020131 - 26 = 12143020067 is a prime.

It is a super-2 number, since 2×121430201312 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12143020031) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 35901 + ... + 159921.

It is an arithmetic number, because the mean of its divisors is an integer number (425643504).

Almost surely, 212143020131 is an apocalyptic number.

12143020131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12143020131 is a deficient number, since it is larger than the sum of its proper divisors (8287868061).

12143020131 is a wasteful number, since it uses less digits than its factorization.

12143020131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124104 (or 124101 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12143020131 its reverse (13102034121), we get a palindrome (25245054252).

The spelling of 12143020131 in words is "twelve billion, one hundred forty-three million, twenty thousand, one hundred thirty-one".

Divisors: 1 3 9 11 23 33 43 69 99 129 207 253 387 473 759 989 1419 2277 2967 4257 8901 10879 32637 97911 124021 372063 1116189 1364231 2852483 4092693 5332903 8557449 12278079 15998709 25672347 31377313 47996127 58661933 94131939 122656769 175985799 282395817 367970307 527957397 1103910921 1349224459 4047673377 12143020131