231213133102 has 16 divisors (see below), whose sum is σ = 398990310912. Its totient is φ = 98435107800.

The previous prime is 231213133097. The next prime is 231213133133. The reversal of 231213133102 is 201331312132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54684058 + ... + 54688285.

It is an arithmetic number, because the mean of its divisors is an integer number (24936894432).

Almost surely, 2^231213133102 is an apocalyptic number.

231213133102 is a deficient number, since it is larger than the sum of its proper divisors (167777177810).

231213133102 is a wasteful number, since it uses less digits than its factorization.

231213133102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109372503.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 231213133102 its reverse (201331312132), we get a palindrome (432544445234).

The spelling of 231213133102 in words is "two hundred thirty-one billion, two hundred thirteen million, one hundred thirty-three thousand, one hundred two".