31020320321227 has 2 divisors, whose sum is σ = 31020320321228. Its totient is φ = 31020320321226.

The previous prime is 31020320321219. The next prime is 31020320321257. The reversal of 31020320321227 is 72212302302013.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31020320321227 - 2³ = 31020320321219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31020320321195 and 31020320321204.

It is not a weakly prime, because it can be changed into another prime (31020320321257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15510160160613 + 15510160160614.

It is an arithmetic number, because the mean of its divisors is an integer number (15510160160614).

Almost surely, 2^{31020320321227} is an apocalyptic number.

31020320321227 is a deficient number, since it is larger than the sum of its proper divisors (1).

31020320321227 is an equidigital number, since it uses as much as digits as its factorization.

31020320321227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 28.

The spelling of 31020320321227 in words is "thirty-one trillion, twenty billion, three hundred twenty million, three hundred twenty-one thousand, two hundred twenty-seven".