2120231231311 has 8 divisors (see below), whose sum is σ = 2121358750560. Its totient is φ = 2119103887872.

The previous prime is 2120231231171. The next prime is 2120231231323. The reversal of 2120231231311 is 1131321320212.

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 2120231231311 - 2²⁵ = 2120197676879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120231231611) 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, 29078446 + ... + 29151268.

It is an arithmetic number, because the mean of its divisors is an integer number (265169843820).

Almost surely, 2^{2120231231311} is an apocalyptic number.

2120231231311 is a deficient number, since it is larger than the sum of its proper divisors (1127519249).

2120231231311 is a wasteful number, since it uses less digits than its factorization.

2120231231311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87905.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 2120231231311 its reverse (1131321320212), we get a palindrome (3251552551523).

The spelling of 2120231231311 in words is "two trillion, one hundred twenty billion, two hundred thirty-one million, two hundred thirty-one thousand, three hundred eleven".