31023131293 has 8 divisors (see below), whose sum is σ = 38678189760. Its totient is φ = 24173868480.

The previous prime is 31023131257. The next prime is 31023131297. The reversal of 31023131293 is 39213132013.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31023131293 - 2²⁹ = 30486260381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31023131297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201448828 + ... + 201448981.

It is an arithmetic number, because the mean of its divisors is an integer number (4834773720).

Almost surely, 2^31023131293 is an apocalyptic number.

It is an amenable number.

31023131293 is a deficient number, since it is larger than the sum of its proper divisors (7655058467).

31023131293 is a wasteful number, since it uses less digits than its factorization.

31023131293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402897827.

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

The spelling of 31023131293 in words is "thirty-one billion, twenty-three million, one hundred thirty-one thousand, two hundred ninety-three".