31112034493 has 2 divisors, whose sum is σ = 31112034494. Its totient is φ = 31112034492.

The previous prime is 31112034491. The next prime is 31112034511. The reversal of 31112034493 is 39443021113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17799028569 + 13313005924 = 133413^2 + 115382^2 .

It is a cyclic number.

It is not a de Polignac number, because 31112034493 - 2¹ = 31112034491 is a prime.

Together with 31112034491, 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 (31112034491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15556017246 + 15556017247.

It is an arithmetic number, because the mean of its divisors is an integer number (15556017247).

Almost surely, 2^31112034493 is an apocalyptic number.

It is an amenable number.

31112034493 is a deficient number, since it is larger than the sum of its proper divisors (1).

31112034493 is an equidigital number, since it uses as much as digits as its factorization.

31112034493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 31.

The spelling of 31112034493 in words is "thirty-one billion, one hundred twelve million, thirty-four thousand, four hundred ninety-three".