31113203293 has 32 divisors (see below), whose sum is σ = 34059820032. Its totient is φ = 28310860800.

The previous prime is 31113203269. The next prime is 31113203371. The reversal of 31113203293 is 39230231113.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31113203293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31113203203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19193023 + ... + 19194643.

It is an arithmetic number, because the mean of its divisors is an integer number (1064369376).

Almost surely, 2^31113203293 is an apocalyptic number.

It is an amenable number.

31113203293 is a deficient number, since it is larger than the sum of its proper divisors (2946616739).

31113203293 is a wasteful number, since it uses less digits than its factorization.

31113203293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2005.

The product of its (nonzero) digits is 2916, while the sum is 28.

The spelling of 31113203293 in words is "thirty-one billion, one hundred thirteen million, two hundred three thousand, two hundred ninety-three".