31132735651 has 2 divisors, whose sum is σ = 31132735652. Its totient is φ = 31132735650.

The previous prime is 31132735649. The next prime is 31132735727. The reversal of 31132735651 is 15653723113.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31132735651 - 2¹ = 31132735649 is a prime.

Together with 31132735649, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 31132735651.

It is not a weakly prime, because it can be changed into another prime (31132735631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15566367825 + 15566367826.

It is an arithmetic number, because the mean of its divisors is an integer number (15566367826).

Almost surely, 2^31132735651 is an apocalyptic number.

31132735651 is a deficient number, since it is larger than the sum of its proper divisors (1).

31132735651 is an equidigital number, since it uses as much as digits as its factorization.

31132735651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56700, while the sum is 37.

The spelling of 31132735651 in words is "thirty-one billion, one hundred thirty-two million, seven hundred thirty-five thousand, six hundred fifty-one".