231031312201202 has 16 divisors (see below), whose sum is σ = 367199332580952. Its totient is φ = 108641432766720.

The previous prime is 231031312201147. The next prime is 231031312201237. The reversal of 231031312201202 is 202102213130132.

It can be written as a sum of positive squares in 4 ways, for example, as 207474956728081 + 23556355473121 = 14403991^2 + 4853489^2 .

It is a super-2 number, since 2×231031312201202² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2474475749 + ... + 2474569112.

Almost surely, 2^{231031312201202} is an apocalyptic number.

231031312201202 is a deficient number, since it is larger than the sum of its proper divisors (136168020379750).

231031312201202 is a wasteful number, since it uses less digits than its factorization.

231031312201202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4949046253.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 231031312201202 its reverse (202102213130132), we get a palindrome (433133525331334).

The spelling of 231031312201202 in words is "two hundred thirty-one trillion, thirty-one billion, three hundred twelve million, two hundred one thousand, two hundred two".