20331300021 has 16 divisors (see below), whose sum is σ = 27296838528. Its totient is φ = 13460040000.

The previous prime is 20331299987. The next prime is 20331300023. The reversal of 20331300021 is 12000313302.

It is not a de Polignac number, because 20331300021 - 2¹⁸ = 20331037877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20331300023) 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, 1968571 + ... + 1978871.

It is an arithmetic number, because the mean of its divisors is an integer number (1706052408).

Almost surely, 2^20331300021 is an apocalyptic number.

It is an amenable number.

20331300021 is a deficient number, since it is larger than the sum of its proper divisors (6965538507).

20331300021 is a wasteful number, since it uses less digits than its factorization.

20331300021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14812.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 20331300021 its reverse (12000313302), we get a palindrome (32331613323).

The spelling of 20331300021 in words is "twenty billion, three hundred thirty-one million, three hundred thousand, twenty-one".