31427084131 has 2 divisors, whose sum is σ = 31427084132. Its totient is φ = 31427084130.

The previous prime is 31427084107. The next prime is 31427084147. The reversal of 31427084131 is 13148072413.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31427084131 - 2⁹ = 31427083619 is a prime.

It is a super-2 number, since 2×31427084131² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (31427084191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15713542065 + 15713542066.

It is an arithmetic number, because the mean of its divisors is an integer number (15713542066).

Almost surely, 2^31427084131 is an apocalyptic number.

31427084131 is a deficient number, since it is larger than the sum of its proper divisors (1).

31427084131 is an equidigital number, since it uses as much as digits as its factorization.

31427084131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 34.

The spelling of 31427084131 in words is "thirty-one billion, four hundred twenty-seven million, eighty-four thousand, one hundred thirty-one".