103231021131 has 32 divisors (see below), whose sum is σ = 176940518400. Its totient is φ = 58989146184.

The previous prime is 103231021043. The next prime is 103231021139. The reversal of 103231021131 is 131120132301.

It is not a de Polignac number, because 103231021131 - 2³¹ = 101083537483 is a prime.

It is a super-2 number, since 2×103231021131² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (103231021139) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3356271 + ... + 3386888.

It is an arithmetic number, because the mean of its divisors is an integer number (5529391200).

Almost surely, 2^103231021131 is an apocalyptic number.

103231021131 is a deficient number, since it is larger than the sum of its proper divisors (73709497269).

103231021131 is an frugal number, since it uses more digits than its factorization.

103231021131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6743187 (or 6743169 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 103231021131 its reverse (131120132301), we get a palindrome (234351153432).

The spelling of 103231021131 in words is "one hundred three billion, two hundred thirty-one million, twenty-one thousand, one hundred thirty-one".