13398804631 has 2 divisors, whose sum is σ = 13398804632. Its totient is φ = 13398804630.

The previous prime is 13398804607. The next prime is 13398804647. The reversal of 13398804631 is 13640889331.

It is a strong prime.

It is an emirp because it is prime and its reverse (13640889331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13398804631 - 2⁹ = 13398804119 is a prime.

It is a super-2 number, since 2×13398804631² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13398864631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6699402315 + 6699402316.

It is an arithmetic number, because the mean of its divisors is an integer number (6699402316).

Almost surely, 2^13398804631 is an apocalyptic number.

13398804631 is a deficient number, since it is larger than the sum of its proper divisors (1).

13398804631 is an equidigital number, since it uses as much as digits as its factorization.

13398804631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 373248, while the sum is 46.

The spelling of 13398804631 in words is "thirteen billion, three hundred ninety-eight million, eight hundred four thousand, six hundred thirty-one".