20331333020 has 24 divisors (see below), whose sum is σ = 42879052944. Its totient is φ = 8097627776.

The previous prime is 20331333007. The next prime is 20331333041. The reversal of 20331333020 is 2033313302.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 20331332983 and 20331333001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2176814 + ... + 2186133.

It is an arithmetic number, because the mean of its divisors is an integer number (1786627206).

Almost surely, 2^20331333020 is an apocalyptic number.

20331333020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20331333020 is an abundant number, since it is smaller than the sum of its proper divisors (22547719924).

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

20331333020 is a wasteful number, since it uses less digits than its factorization.

20331333020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4363189 (or 4363187 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 20.

Adding to 20331333020 its reverse (2033313302), we get a palindrome (22364646322).

The spelling of 20331333020 in words is "twenty billion, three hundred thirty-one million, three hundred thirty-three thousand, twenty".