31000401424 has 20 divisors (see below), whose sum is σ = 61460099536. Its totient is φ = 15139730592.

The previous prime is 31000401407. The next prime is 31000401427. The reversal of 31000401424 is 42410400013.

It is a super-2 number, since 2×31000401424² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31000401427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22528674 + ... + 22530049.

Almost surely, 2^31000401424 is an apocalyptic number.

It is an amenable number.

31000401424 is a deficient number, since it is larger than the sum of its proper divisors (30459698112).

31000401424 is a wasteful number, since it uses less digits than its factorization.

31000401424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45058774 (or 45058768 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 31000401424 its reverse (42410400013), we get a palindrome (73410801437).

The spelling of 31000401424 in words is "thirty-one billion, four hundred one thousand, four hundred twenty-four".