12103023131 has 24 divisors (see below), whose sum is σ = 13289450496. Its totient is φ = 10990156320.

The previous prime is 12103023091. The next prime is 12103023169. The reversal of 12103023131 is 13132030121.

It is not a de Polignac number, because 12103023131 - 2¹⁸ = 12102760987 is a prime.

It is a super-2 number, since 2×12103023131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12103023181) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1999796 + ... + 2005838.

It is an arithmetic number, because the mean of its divisors is an integer number (553727104).

Almost surely, 2^12103023131 is an apocalyptic number.

12103023131 is a deficient number, since it is larger than the sum of its proper divisors (1186427365).

12103023131 is an equidigital number, since it uses as much as digits as its factorization.

12103023131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6203 (or 6150 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 12103023131 its reverse (13132030121), we get a palindrome (25235053252).

The spelling of 12103023131 in words is "twelve billion, one hundred three million, twenty-three thousand, one hundred thirty-one".