31023123302212 has 12 divisors (see below), whose sum is σ = 54344059533036. Its totient is φ = 15496249149920.

The previous prime is 31023123302191. The next prime is 31023123302231. The reversal of 31023123302212 is 21220332132013.

It can be written as a sum of positive squares in 2 ways, for example, as 15388485369856 + 15634637932356 = 3922816^2 + 3954066^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3828120739 + ... + 3828128842.

It is an arithmetic number, because the mean of its divisors is an integer number (4528671627753).

Almost surely, 2^{31023123302212} is an apocalyptic number.

It is an amenable number.

31023123302212 is a deficient number, since it is larger than the sum of its proper divisors (23320936230824).

31023123302212 is a wasteful number, since it uses less digits than its factorization.

31023123302212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7656250598 (or 7656250596 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 31023123302212 its reverse (21220332132013), we get a palindrome (52243455434225).

The spelling of 31023123302212 in words is "thirty-one trillion, twenty-three billion, one hundred twenty-three million, three hundred two thousand, two hundred twelve".