31321012027 has 2 divisors, whose sum is σ = 31321012028. Its totient is φ = 31321012026.

The previous prime is 31321012001. The next prime is 31321012031. The reversal of 31321012027 is 72021012313.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31321012027 - 2⁷ = 31321011899 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31321011989 and 31321012007.

It is not a weakly prime, because it can be changed into another prime (31321012067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15660506013 + 15660506014.

It is an arithmetic number, because the mean of its divisors is an integer number (15660506014).

Almost surely, 2^31321012027 is an apocalyptic number.

31321012027 is a deficient number, since it is larger than the sum of its proper divisors (1).

31321012027 is an equidigital number, since it uses as much as digits as its factorization.

31321012027 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 22.

The spelling of 31321012027 in words is "thirty-one billion, three hundred twenty-one million, twelve thousand, twenty-seven".