231321133301022 has 24 divisors (see below), whose sum is σ = 501201206021880. Its totient is φ = 77106211017840.

The previous prime is 231321133300973. The next prime is 231321133301081. The reversal of 231321133301022 is 220103331123132.

231321133301022 is a `hidden beast` number, since 2 + 3 + 1 + 321 + 1 + 3 + 330 + 1 + 0 + 2 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67738572 + ... + 71071487.

It is an arithmetic number, because the mean of its divisors is an integer number (20883383584245).

Almost surely, 2^{231321133301022} is an apocalyptic number.

231321133301022 is an abundant number, since it is smaller than the sum of its proper divisors (269880072720858).

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

231321133301022 is a wasteful number, since it uses less digits than its factorization.

231321133301022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138902648 (or 138902645 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 231321133301022 its reverse (220103331123132), we get a palindrome (451424464424154).

The spelling of 231321133301022 in words is "two hundred thirty-one trillion, three hundred twenty-one billion, one hundred thirty-three million, three hundred one thousand, twenty-two".