20331300031020 has 96 divisors (see below), whose sum is σ = 69003200125440. Its totient is φ = 4928800006080.

The previous prime is 20331300031019. The next prime is 20331300031027. The reversal of 20331300031020 is 2013000313302.

20331300031020 is a `hidden beast` number, since 2 + 0 + 3 + 31 + 300 + 0 + 310 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20331300030984 and 20331300031002.

It is not an unprimeable number, because it can be changed into a prime (20331300031027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1711382952 + ... + 1711394831.

It is an arithmetic number, because the mean of its divisors is an integer number (718783334640).

Almost surely, 2^{20331300031020} is an apocalyptic number.

20331300031020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20331300031020 is an abundant number, since it is smaller than the sum of its proper divisors (48671900094420).

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

20331300031020 is a wasteful number, since it uses less digits than its factorization.

20331300031020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3422777812 (or 3422777804 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 20331300031020 its reverse (2013000313302), we get a palindrome (22344300344322).

The spelling of 20331300031020 in words is "twenty trillion, three hundred thirty-one billion, three hundred million, thirty-one thousand, twenty".