31613024461 has 2 divisors, whose sum is σ = 31613024462. Its totient is φ = 31613024460.

The previous prime is 31613024459. The next prime is 31613024501. The reversal of 31613024461 is 16442031613.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23608322500 + 8004701961 = 153650^2 + 89469^2 .

It is a cyclic number.

It is not a de Polignac number, because 31613024461 - 2¹ = 31613024459 is a prime.

Together with 31613024459, 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 (31613054461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15806512230 + 15806512231.

It is an arithmetic number, because the mean of its divisors is an integer number (15806512231).

Almost surely, 2^31613024461 is an apocalyptic number.

It is an amenable number.

31613024461 is a deficient number, since it is larger than the sum of its proper divisors (1).

31613024461 is an equidigital number, since it uses as much as digits as its factorization.

31613024461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 31613024461 in words is "thirty-one billion, six hundred thirteen million, twenty-four thousand, four hundred sixty-one".