31327672351 has 2 divisors, whose sum is σ = 31327672352. Its totient is φ = 31327672350.

The previous prime is 31327672349. The next prime is 31327672361. The reversal of 31327672351 is 15327672313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31327672351 - 2¹ = 31327672349 is a prime.

Together with 31327672349, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31327672331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15663836175 + 15663836176.

It is an arithmetic number, because the mean of its divisors is an integer number (15663836176).

Almost surely, 2^31327672351 is an apocalyptic number.

31327672351 is a deficient number, since it is larger than the sum of its proper divisors (1).

31327672351 is an equidigital number, since it uses as much as digits as its factorization.

31327672351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 158760, while the sum is 40.

The spelling of 31327672351 in words is "thirty-one billion, three hundred twenty-seven million, six hundred seventy-two thousand, three hundred fifty-one".