31618586011 has 2 divisors, whose sum is σ = 31618586012. Its totient is φ = 31618586010.

The previous prime is 31618586003. The next prime is 31618586017. The reversal of 31618586011 is 11068581613.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31618586011 - 2³ = 31618586003 is a prime.

It is not a weakly prime, because it can be changed into another prime (31618586017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15809293005 + 15809293006.

It is an arithmetic number, because the mean of its divisors is an integer number (15809293006).

Almost surely, 2^31618586011 is an apocalyptic number.

31618586011 is a deficient number, since it is larger than the sum of its proper divisors (1).

31618586011 is an equidigital number, since it uses as much as digits as its factorization.

31618586011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 40.

The spelling of 31618586011 in words is "thirty-one billion, six hundred eighteen million, five hundred eighty-six thousand, eleven".