31130118007 has 2 divisors, whose sum is σ = 31130118008. Its totient is φ = 31130118006.

The previous prime is 31130117999. The next prime is 31130118037. The reversal of 31130118007 is 70081103113.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31130118007 - 2³ = 31130117999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31130118037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15565059003 + 15565059004.

It is an arithmetic number, because the mean of its divisors is an integer number (15565059004).

Almost surely, 2^31130118007 is an apocalyptic number.

31130118007 is a deficient number, since it is larger than the sum of its proper divisors (1).

31130118007 is an equidigital number, since it uses as much as digits as its factorization.

31130118007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 25.

The spelling of 31130118007 in words is "thirty-one billion, one hundred thirty million, one hundred eighteen thousand, seven".