231116213022 has 16 divisors (see below), whose sum is σ = 462240628992. Its totient is φ = 77037370520.

The previous prime is 231116213017. The next prime is 231116213051. The reversal of 231116213022 is 220312611132.

It is a junction number, because it is equal to n+sod(n) for n = 231116212983 and 231116213001.

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, 60997 + ... + 682607.

It is an arithmetic number, because the mean of its divisors is an integer number (28890039312).

Almost surely, 2^231116213022 is an apocalyptic number.

231116213022 is an abundant number, since it is smaller than the sum of its proper divisors (231124415970).

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

231116213022 is a wasteful number, since it uses less digits than its factorization.

231116213022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683583.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 231116213022 its reverse (220312611132), we get a palindrome (451428824154).

The spelling of 231116213022 in words is "two hundred thirty-one billion, one hundred sixteen million, two hundred thirteen thousand, twenty-two".