231222311344402 has 24 divisors (see below), whose sum is σ = 403460213391180. Its totient is φ = 99095061572640.

The previous prime is 231222311344397. The next prime is 231222311344411. The reversal of 231222311344402 is 204443113222132.

231222311344402 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 2 ways, for example, as 192647765417121 + 38574545927281 = 13879761^2 + 6210841^2 .

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, 47973252 + ... + 52572592.

Almost surely, 2^{231222311344402} is an apocalyptic number.

231222311344402 is a deficient number, since it is larger than the sum of its proper divisors (172237902046778).

231222311344402 is a wasteful number, since it uses less digits than its factorization.

231222311344402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5112346 (or 5112339 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 34.

Adding to 231222311344402 its reverse (204443113222132), we get a palindrome (435665424566534).

The spelling of 231222311344402 in words is "two hundred thirty-one trillion, two hundred twenty-two billion, three hundred eleven million, three hundred forty-four thousand, four hundred two".