31424402023 has 24 divisors (see below), whose sum is σ = 36967190400. Its totient is φ = 26633073600.

The previous prime is 31424401969. The next prime is 31424402047. The reversal of 31424402023 is 32020442413.

It is a happy number.

It is not a de Polignac number, because 31424402023 - 2²⁵ = 31390847591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31424402083) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1618473 + ... + 1637773.

It is an arithmetic number, because the mean of its divisors is an integer number (1540299600).

Almost surely, 2^31424402023 is an apocalyptic number.

31424402023 is a deficient number, since it is larger than the sum of its proper divisors (5542788377).

31424402023 is a wasteful number, since it uses less digits than its factorization.

31424402023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19687 (or 19680 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 31424402023 its reverse (32020442413), we get a palindrome (63444844436).

The spelling of 31424402023 in words is "thirty-one billion, four hundred twenty-four million, four hundred two thousand, twenty-three".