13421287631 has 2 divisors, whose sum is σ = 13421287632. Its totient is φ = 13421287630.

The previous prime is 13421287601. The next prime is 13421287651. The reversal of 13421287631 is 13678212431.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13421287631 - 2¹⁸ = 13421025487 is a prime.

It is a super-2 number, since 2×13421287631² (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 (13421287601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6710643815 + 6710643816.

It is an arithmetic number, because the mean of its divisors is an integer number (6710643816).

Almost surely, 2^13421287631 is an apocalyptic number.

13421287631 is a deficient number, since it is larger than the sum of its proper divisors (1).

13421287631 is an equidigital number, since it uses as much as digits as its factorization.

13421287631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 38.

The spelling of 13421287631 in words is "thirteen billion, four hundred twenty-one million, two hundred eighty-seven thousand, six hundred thirty-one".