2120321122311 has 48 divisors (see below), whose sum is σ = 3402372608640. Its totient is φ = 1169726040000.

The previous prime is 2120321122307. The next prime is 2120321122327. The reversal of 2120321122311 is 1132211230212.

It is not a de Polignac number, because 2120321122311 - 2² = 2120321122307 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120321122301) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 80757936 + ... + 80784186.

It is an arithmetic number, because the mean of its divisors is an integer number (70882762680).

Almost surely, 2^{2120321122311} is an apocalyptic number.

2120321122311 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2120321122311 is a deficient number, since it is larger than the sum of its proper divisors (1282051486329).

2120321122311 is a wasteful number, since it uses less digits than its factorization.

2120321122311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45244 (or 45237 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 2120321122311 its reverse (1132211230212), we get a palindrome (3252532352523).

The spelling of 2120321122311 in words is "two trillion, one hundred twenty billion, three hundred twenty-one million, one hundred twenty-two thousand, three hundred eleven".