31112034491 has 2 divisors, whose sum is σ = 31112034492. Its totient is φ = 31112034490.

The previous prime is 31112034463. The next prime is 31112034493. The reversal of 31112034491 is 19443021113.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31112034491 - 2¹⁴ = 31112018107 is a prime.

Together with 31112034493, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (31112034493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15556017245 + 15556017246.

It is an arithmetic number, because the mean of its divisors is an integer number (15556017246).

Almost surely, 2^31112034491 is an apocalyptic number.

31112034491 is a deficient number, since it is larger than the sum of its proper divisors (1).

31112034491 is an equidigital number, since it uses as much as digits as its factorization.

31112034491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 31112034491 in words is "thirty-one billion, one hundred twelve million, thirty-four thousand, four hundred ninety-one".