231312211023 has 16 divisors (see below), whose sum is σ = 320310879840. Its totient is φ = 148354500096.

The previous prime is 231312210977. The next prime is 231312211049. The reversal of 231312211023 is 320112213132.

It is not a de Polignac number, because 231312211023 - 2¹⁴ = 231312194639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231312281023) 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, 11697390 + ... + 11717147.

It is an arithmetic number, because the mean of its divisors is an integer number (20019429990).

Almost surely, 2^231312211023 is an apocalyptic number.

231312211023 is a deficient number, since it is larger than the sum of its proper divisors (88998668817).

231312211023 is a wasteful number, since it uses less digits than its factorization.

231312211023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23414666.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 231312211023 its reverse (320112213132), we get a palindrome (551424424155).

The spelling of 231312211023 in words is "two hundred thirty-one billion, three hundred twelve million, two hundred eleven thousand, twenty-three".