20310331102021 has 8 divisors (see below), whose sum is σ = 20319777244800. Its totient is φ = 20300885900448.

The previous prime is 20310331101971. The next prime is 20310331102081. The reversal of 20310331102021 is 12020113301302.

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

It is a cyclic number.

It is not a de Polignac number, because 20310331102021 - 2²¹ = 20310329004869 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20310331102021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20310331102081) 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, 44939430 + ... + 45389128.

It is an arithmetic number, because the mean of its divisors is an integer number (2539972155600).

Almost surely, 2^{20310331102021} is an apocalyptic number.

It is an amenable number.

20310331102021 is a deficient number, since it is larger than the sum of its proper divisors (9446142779).

20310331102021 is a wasteful number, since it uses less digits than its factorization.

20310331102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470603.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 20310331102021 its reverse (12020113301302), we get a palindrome (32330444403323).

The spelling of 20310331102021 in words is "twenty trillion, three hundred ten billion, three hundred thirty-one million, one hundred two thousand, twenty-one".