31983111227 has 2 divisors, whose sum is σ = 31983111228. Its totient is φ = 31983111226.

The previous prime is 31983111137. The next prime is 31983111241. The reversal of 31983111227 is 72211138913.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31983111227 is a prime.

It is not a weakly prime, because it can be changed into another prime (31983111257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15991555613 + 15991555614.

It is an arithmetic number, because the mean of its divisors is an integer number (15991555614).

Almost surely, 2^31983111227 is an apocalyptic number.

31983111227 is a deficient number, since it is larger than the sum of its proper divisors (1).

31983111227 is an equidigital number, since it uses as much as digits as its factorization.

31983111227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 38.

The spelling of 31983111227 in words is "thirty-one billion, nine hundred eighty-three million, one hundred eleven thousand, two hundred twenty-seven".