231331124022 has 16 divisors (see below), whose sum is σ = 462669649920. Its totient is φ = 77109141032.

The previous prime is 231331123999. The next prime is 231331124027. The reversal of 231331124022 is 220421133132.

It is a junction number, because it is equal to n+sod(n) for n = 231331123983 and 231331124001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231331124027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150379 + ... + 696617.

It is an arithmetic number, because the mean of its divisors is an integer number (28916853120).

Almost surely, 2^231331124022 is an apocalyptic number.

231331124022 is an abundant number, since it is smaller than the sum of its proper divisors (231338525898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231331124022 is a wasteful number, since it uses less digits than its factorization.

231331124022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616827.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 231331124022 its reverse (220421133132), we get a palindrome (451752257154).

The spelling of 231331124022 in words is "two hundred thirty-one billion, three hundred thirty-one million, one hundred twenty-four thousand, twenty-two".