31056920209148 has 24 divisors (see below), whose sum is σ = 55006937747328. Its totient is φ = 15340669375536.

The previous prime is 31056920209141. The next prime is 31056920209177. The reversal of 31056920209148 is 84190202965013.

It is a junction number, because it is equal to n+sod(n) for n = 31056920209096 and 31056920209105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31056920209141) 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 7 ways as a sum of consecutive naturals, for example, 5179265 + ... + 9430727.

It is an arithmetic number, because the mean of its divisors is an integer number (2291955739472).

Almost surely, 2^{31056920209148} is an apocalyptic number.

It is an amenable number.

31056920209148 is a deficient number, since it is larger than the sum of its proper divisors (23950017538180).

31056920209148 is a wasteful number, since it uses less digits than its factorization.

31056920209148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4273553 (or 4273551 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 50.

The spelling of 31056920209148 in words is "thirty-one trillion, fifty-six billion, nine hundred twenty million, two hundred nine thousand, one hundred forty-eight".