12320143131 has 16 divisors (see below), whose sum is σ = 17145273600. Its totient is φ = 7854396000.

The previous prime is 12320143123. The next prime is 12320143139. The reversal of 12320143131 is 13134102321.

It is an interprime number because it is at equal distance from previous prime (12320143123) and next prime (12320143139).

It is not a de Polignac number, because 12320143131 - 2³ = 12320143123 is a prime.

It is a super-2 number, since 2×12320143131² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12320143098 and 12320143107.

It is not an unprimeable number, because it can be changed into a prime (12320143139) 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, 294256 + ... + 333506.

It is an arithmetic number, because the mean of its divisors is an integer number (1071579600).

Almost surely, 2^12320143131 is an apocalyptic number.

12320143131 is a deficient number, since it is larger than the sum of its proper divisors (4825130469).

12320143131 is a wasteful number, since it uses less digits than its factorization.

12320143131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43826.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 12320143131 its reverse (13134102321), we get a palindrome (25454245452).

The spelling of 12320143131 in words is "twelve billion, three hundred twenty million, one hundred forty-three thousand, one hundred thirty-one".