31356056043 has 80 divisors (see below), whose sum is σ = 51681907200. Its totient is φ = 18827328960.

The previous prime is 31356056029. The next prime is 31356056057. The reversal of 31356056043 is 34065065313.

31356056043 is a `hidden beast` number, since 3 + 1 + 3 + 5 + 605 + 6 + 0 + 43 = 666.

It is an interprime number because it is at equal distance from previous prime (31356056029) and next prime (31356056057).

It is not a de Polignac number, because 31356056043 - 2¹⁰ = 31356055019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31356055989 and 31356056007.

It is not an unprimeable number, because it can be changed into a prime (31356056023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 8633838 + ... + 8637468.

It is an arithmetic number, because the mean of its divisors is an integer number (646023840).

Almost surely, 2^31356056043 is an apocalyptic number.

31356056043 is a deficient number, since it is larger than the sum of its proper divisors (20325851157).

31356056043 is a wasteful number, since it uses less digits than its factorization.

31356056043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3854 (or 3845 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 36.

The spelling of 31356056043 in words is "thirty-one billion, three hundred fifty-six million, fifty-six thousand, forty-three".