31043024020 has 48 divisors (see below), whose sum is σ = 66067642368. Its totient is φ = 12251191680.

The previous prime is 31043024003. The next prime is 31043024027. The reversal of 31043024020 is 2042034013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31043024027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 425979 + ... + 493501.

It is an arithmetic number, because the mean of its divisors is an integer number (1376409216).

Almost surely, 2^31043024020 is an apocalyptic number.

It is an amenable number.

31043024020 is an abundant number, since it is smaller than the sum of its proper divisors (35024618348).

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

31043024020 is a wasteful number, since it uses less digits than its factorization.

31043024020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67840 (or 67838 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 31043024020 its reverse (2042034013), we get a palindrome (33085058033).

The spelling of 31043024020 in words is "thirty-one billion, forty-three million, twenty-four thousand, twenty".