20312333020 has 48 divisors (see below), whose sum is σ = 49048731648. Its totient is φ = 6921495360.

The previous prime is 20312333009. The next prime is 20312333039. The reversal of 20312333020 is 2033321302.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 422236 + ... + 467875.

It is an arithmetic number, because the mean of its divisors is an integer number (1021848576).

Almost surely, 2^20312333020 is an apocalyptic number.

20312333020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20312333020 is an abundant number, since it is smaller than the sum of its proper divisors (28736398628).

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

20312333020 is a wasteful number, since it uses less digits than its factorization.

20312333020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890290 (or 890288 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 20312333020 its reverse (2033321302), we get a palindrome (22345654322).

The spelling of 20312333020 in words is "twenty billion, three hundred twelve million, three hundred thirty-three thousand, twenty".