2321120013231 has 4 divisors (see below), whose sum is σ = 3094826684312. Its totient is φ = 1547413342152.

The previous prime is 2321120013227. The next prime is 2321120013241. The reversal of 2321120013231 is 1323100211232.

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

It is not a de Polignac number, because 2321120013231 - 2² = 2321120013227 is a prime.

It is a super-2 number, since 2×2321120013231² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2321120013198 and 2321120013207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2321120013241) 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, 386853335536 + ... + 386853335541.

It is an arithmetic number, because the mean of its divisors is an integer number (773706671078).

Almost surely, 2^{2321120013231} is an apocalyptic number.

2321120013231 is a deficient number, since it is larger than the sum of its proper divisors (773706671081).

2321120013231 is an equidigital number, since it uses as much as digits as its factorization.

2321120013231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773706671080.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 2321120013231 its reverse (1323100211232), we get a palindrome (3644220224463).

The spelling of 2321120013231 in words is "two trillion, three hundred twenty-one billion, one hundred twenty million, thirteen thousand, two hundred thirty-one".