31363406421 has 16 divisors (see below), whose sum is σ = 43001168448. Its totient is φ = 20318688000.

The previous prime is 31363406411. The next prime is 31363406447. The reversal of 31363406421 is 12460436313.

It is not a de Polignac number, because 31363406421 - 2⁷ = 31363406293 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31363406401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84180 + ... + 264221.

It is an arithmetic number, because the mean of its divisors is an integer number (2687573028).

Almost surely, 2^31363406421 is an apocalyptic number.

It is an amenable number.

31363406421 is a deficient number, since it is larger than the sum of its proper divisors (11637762027).

31363406421 is a wasteful number, since it uses less digits than its factorization.

31363406421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349252.

The product of its (nonzero) digits is 31104, while the sum is 33.

The spelling of 31363406421 in words is "thirty-one billion, three hundred sixty-three million, four hundred six thousand, four hundred twenty-one".