31120130302537 has 2 divisors, whose sum is σ = 31120130302538. Its totient is φ = 31120130302536.

The previous prime is 31120130302531. The next prime is 31120130302559. The reversal of 31120130302537 is 73520303102113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24315905005456 + 6804225297081 = 4931116^2 + 2608491^2 .

It is a cyclic number.

It is not a de Polignac number, because 31120130302537 - 2²⁷ = 31119996084809 is a prime.

It is a super-2 number, since 2×31120130302537² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31120130302499 and 31120130302508.

It is not a weakly prime, because it can be changed into another prime (31120130302531) 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 as a sum of consecutive naturals, namely, 15560065151268 + 15560065151269.

It is an arithmetic number, because the mean of its divisors is an integer number (15560065151269).

Almost surely, 2^{31120130302537} is an apocalyptic number.

It is an amenable number.

31120130302537 is a deficient number, since it is larger than the sum of its proper divisors (1).

31120130302537 is an equidigital number, since it uses as much as digits as its factorization.

31120130302537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 31.

The spelling of 31120130302537 in words is "thirty-one trillion, one hundred twenty billion, one hundred thirty million, three hundred two thousand, five hundred thirty-seven".