31424024020 has 24 divisors (see below), whose sum is σ = 66510065664. Its totient is φ = 12470635296.

The previous prime is 31424024011. The next prime is 31424024029. The reversal of 31424024020 is 2042042413.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (31424024011) and next prime (31424024029).

It is a junction number, because it is equal to n+sod(n) for n = 31424023982 and 31424024000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31424024029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6183292 + ... + 6188371.

It is an arithmetic number, because the mean of its divisors is an integer number (2771252736).

Almost surely, 2^31424024020 is an apocalyptic number.

It is an amenable number.

31424024020 is an abundant number, since it is smaller than the sum of its proper divisors (35086041644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31424024020 is a wasteful number, since it uses less digits than its factorization.

31424024020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12371799 (or 12371797 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 31424024020 its reverse (2042042413), we get a palindrome (33466066433).

The spelling of 31424024020 in words is "thirty-one billion, four hundred twenty-four million, twenty-four thousand, twenty".