31348037205 has 80 divisors (see below), whose sum is σ = 60411098880. Its totient is φ = 15501829248.

The previous prime is 31348037069. The next prime is 31348037207. The reversal of 31348037205 is 50273084313.

It is not a de Polignac number, because 31348037205 - 2⁸ = 31348036949 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31348037205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31348037207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 318327 + ... + 405003.

It is an arithmetic number, because the mean of its divisors is an integer number (755138736).

Almost surely, 2^31348037205 is an apocalyptic number.

It is an amenable number.

31348037205 is a deficient number, since it is larger than the sum of its proper divisors (29063061675).

31348037205 is a wasteful number, since it uses less digits than its factorization.

31348037205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86760 (or 86751 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The spelling of 31348037205 in words is "thirty-one billion, three hundred forty-eight million, thirty-seven thousand, two hundred five".