20300331021 has 8 divisors (see below), whose sum is σ = 27315430560. Its totient is φ = 13409392752.

The previous prime is 20300330969. The next prime is 20300331043. The reversal of 20300331021 is 12013300302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20300331021 - 2⁶ = 20300330957 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20300331421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31039935 + ... + 31040588.

It is an arithmetic number, because the mean of its divisors is an integer number (3414428820).

Almost surely, 2^20300331021 is an apocalyptic number.

It is an amenable number.

20300331021 is a deficient number, since it is larger than the sum of its proper divisors (7015099539).

20300331021 is a wasteful number, since it uses less digits than its factorization.

20300331021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62080635.

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

Adding to 20300331021 its reverse (12013300302), we get a palindrome (32313631323).

The spelling of 20300331021 in words is "twenty billion, three hundred million, three hundred thirty-one thousand, twenty-one".