20020210311311 has 12 divisors (see below), whose sum is σ = 23856835983120. Its totient is φ = 16741639283040.

The previous prime is 20020210311301. The next prime is 20020210311337. The reversal of 20020210311311 is 11311301202002.

It is not a de Polignac number, because 20020210311311 - 2⁶ = 20020210311247 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20020210311311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020210311301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4982628731 + ... + 4982632748.

It is an arithmetic number, because the mean of its divisors is an integer number (1988069665260).

Almost surely, 2^{20020210311311} is an apocalyptic number.

20020210311311 is a deficient number, since it is larger than the sum of its proper divisors (3836625671809).

20020210311311 is an equidigital number, since it uses as much as digits as its factorization.

20020210311311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9965261534 (or 9965261527 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 20020210311311 its reverse (11311301202002), we get a palindrome (31331511513313).

The spelling of 20020210311311 in words is "twenty trillion, twenty billion, two hundred ten million, three hundred eleven thousand, three hundred eleven".