231122213023 has 16 divisors (see below), whose sum is σ = 252779304960. Its totient is φ = 210023310816.

The previous prime is 231122213017. The next prime is 231122213039. The reversal of 231122213023 is 320312221132.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231122213023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231122212985 and 231122213003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231122213923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1272786 + ... + 1442992.

It is an arithmetic number, because the mean of its divisors is an integer number (15798706560).

Almost surely, 2^231122213023 is an apocalyptic number.

231122213023 is a deficient number, since it is larger than the sum of its proper divisors (21657091937).

231122213023 is a wasteful number, since it uses less digits than its factorization.

231122213023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171846.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 231122213023 its reverse (320312221132), we get a palindrome (551434434155).

The spelling of 231122213023 in words is "two hundred thirty-one billion, one hundred twenty-two million, two hundred thirteen thousand, twenty-three".