31371311740 has 12 divisors (see below), whose sum is σ = 65879754696. Its totient is φ = 12548524688.

The previous prime is 31371311723. The next prime is 31371311753. The reversal of 31371311740 is 4711317313.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 784282774 + ... + 784282813.

It is an arithmetic number, because the mean of its divisors is an integer number (5489979558).

Almost surely, 2^31371311740 is an apocalyptic number.

It is an amenable number.

31371311740 is an abundant number, since it is smaller than the sum of its proper divisors (34508442956).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31371311740 is a wasteful number, since it uses less digits than its factorization.

31371311740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1568565596 (or 1568565594 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 31.

The spelling of 31371311740 in words is "thirty-one billion, three hundred seventy-one million, three hundred eleven thousand, seven hundred forty".