31013233131212 has 12 divisors (see below), whose sum is σ = 54273522462096. Its totient is φ = 15506512427760.

The previous prime is 31013233131143. The next prime is 31013233131227. The reversal of 31013233131212 is 21213133231013.

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, 25362464 + ... + 26557127.

It is an arithmetic number, because the mean of its divisors is an integer number (4522793538508).

Almost surely, 2^{31013233131212} is an apocalyptic number.

It is an amenable number.

31013233131212 is a deficient number, since it is larger than the sum of its proper divisors (23260289330884).

31013233131212 is a wasteful number, since it uses less digits than its factorization.

31013233131212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52068928 (or 52068926 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 31013233131212 its reverse (21213133231013), we get a palindrome (52226366362225).

The spelling of 31013233131212 in words is "thirty-one trillion, thirteen billion, two hundred thirty-three million, one hundred thirty-one thousand, two hundred twelve".