20312033013211 has 4 divisors (see below), whose sum is σ = 20312042257800. Its totient is φ = 20312023768624.

The previous prime is 20312033013179. The next prime is 20312033013241. The reversal of 20312033013211 is 11231033021302.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20312033013211 - 2⁵ = 20312033013179 is a prime.

It is a super-2 number, since 2×20312033013211² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20312033013241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 771495 + ... + 6420223.

It is an arithmetic number, because the mean of its divisors is an integer number (5078010564450).

Almost surely, 2^{20312033013211} is an apocalyptic number.

20312033013211 is a deficient number, since it is larger than the sum of its proper divisors (9244589).

20312033013211 is an equidigital number, since it uses as much as digits as its factorization.

20312033013211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9244588.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 20312033013211 its reverse (11231033021302), we get a palindrome (31543066034513).

The spelling of 20312033013211 in words is "twenty trillion, three hundred twelve billion, thirty-three million, thirteen thousand, two hundred eleven".