231032213301213 has 48 divisors (see below), whose sum is σ = 354047130049392. Its totient is φ = 144672749568000.

The previous prime is 231032213301203. The next prime is 231032213301233. The reversal of 231032213301213 is 312103312230132.

231032213301213 is a `hidden beast` number, since 2 + 3 + 1 + 0 + 322 + 1 + 330 + 1 + 2 + 1 + 3 = 666.

231032213301213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 40737416812569 + 190294796488644 = 6382587^2 + 13794738^2 .

It is not a de Polignac number, because 231032213301213 - 2⁵ = 231032213301181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231032213301203) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 589230553 + ... + 589622513.

It is an arithmetic number, because the mean of its divisors is an integer number (7375981876029).

Almost surely, 2^{231032213301213} is an apocalyptic number.

It is an amenable number.

231032213301213 is a deficient number, since it is larger than the sum of its proper divisors (123014916748179).

231032213301213 is a wasteful number, since it uses less digits than its factorization.

231032213301213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399646 (or 399643 counting only the distinct ones).

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

Adding to 231032213301213 its reverse (312103312230132), we get a palindrome (543135525531345).

The spelling of 231032213301213 in words is "two hundred thirty-one trillion, thirty-two billion, two hundred thirteen million, three hundred one thousand, two hundred thirteen".