31373036123 has 24 divisors (see below), whose sum is σ = 37964351376. Its totient is φ = 25684838400.

The previous prime is 31373036119. The next prime is 31373036153. The reversal of 31373036123 is 32163037313.

It is not a de Polignac number, because 31373036123 - 2² = 31373036119 is a prime.

It is a super-2 number, since 2×31373036123² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31373036123.

It is not an unprimeable number, because it can be changed into a prime (31373036153) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 129590 + ... + 282027.

It is an arithmetic number, because the mean of its divisors is an integer number (1581847974).

Almost surely, 2^31373036123 is an apocalyptic number.

31373036123 is a deficient number, since it is larger than the sum of its proper divisors (6591315253).

31373036123 is a wasteful number, since it uses less digits than its factorization.

31373036123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411695 (or 411682 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 32.

The spelling of 31373036123 in words is "thirty-one billion, three hundred seventy-three million, thirty-six thousand, one hundred twenty-three".