31970155045 has 16 divisors (see below), whose sum is σ = 38538891072. Its totient is φ = 25459741440.

The previous prime is 31970155037. The next prime is 31970155111. The reversal of 31970155045 is 54055107913.

It is not a de Polignac number, because 31970155045 - 2³ = 31970155037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31970154989 and 31970155007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4723834 + ... + 4730596.

It is an arithmetic number, because the mean of its divisors is an integer number (2408680692).

Almost surely, 2^31970155045 is an apocalyptic number.

It is an amenable number.

31970155045 is a deficient number, since it is larger than the sum of its proper divisors (6568736027).

31970155045 is a wasteful number, since it uses less digits than its factorization.

31970155045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10932.

The product of its (nonzero) digits is 94500, while the sum is 40.

The spelling of 31970155045 in words is "thirty-one billion, nine hundred seventy million, one hundred fifty-five thousand, forty-five".