20330031013211 has 4 divisors (see below), whose sum is σ = 20330675808024. Its totient is φ = 20329386218400.

The previous prime is 20330031013183. The next prime is 20330031013283. The reversal of 20330031013211 is 11231013003302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20330031013211 - 2³⁸ = 20055153106267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20330031012211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322350110 + ... + 322413171.

It is an arithmetic number, because the mean of its divisors is an integer number (5082668952006).

Almost surely, 2^{20330031013211} is an apocalyptic number.

20330031013211 is a deficient number, since it is larger than the sum of its proper divisors (644794813).

20330031013211 is an equidigital number, since it uses as much as digits as its factorization.

20330031013211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644794812.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 20330031013211 its reverse (11231013003302), we get a palindrome (31561044016513).

The spelling of 20330031013211 in words is "twenty trillion, three hundred thirty billion, thirty-one million, thirteen thousand, two hundred eleven".