31114814609 has 2 divisors, whose sum is σ = 31114814610. Its totient is φ = 31114814608.

The previous prime is 31114814581. The next prime is 31114814623. The reversal of 31114814609 is 90641841113.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22581673984 + 8533140625 = 150272^2 + 92375^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31114814609 is a prime.

It is a super-3 number, since 3×31114814609³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (31114814629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15557407304 + 15557407305.

It is an arithmetic number, because the mean of its divisors is an integer number (15557407305).

Almost surely, 2^31114814609 is an apocalyptic number.

It is an amenable number.

31114814609 is a deficient number, since it is larger than the sum of its proper divisors (1).

31114814609 is an equidigital number, since it uses as much as digits as its factorization.

31114814609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 38.

The spelling of 31114814609 in words is "thirty-one billion, one hundred fourteen million, eight hundred fourteen thousand, six hundred nine".