2312113321321 has 2 divisors, whose sum is σ = 2312113321322. Its totient is φ = 2312113321320.

The previous prime is 2312113321313. The next prime is 2312113321339. The reversal of 2312113321321 is 1231233112132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2277865747600 + 34247573721 = 1509260^2 + 185061^2 .

It is a cyclic number.

It is not a de Polignac number, because 2312113321321 - 2³ = 2312113321313 is a prime.

It is not a weakly prime, because it can be changed into another prime (2312113301321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1156056660660 + 1156056660661.

It is an arithmetic number, because the mean of its divisors is an integer number (1156056660661).

Almost surely, 2^{2312113321321} is an apocalyptic number.

It is an amenable number.

2312113321321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2312113321321 is an equidigital number, since it uses as much as digits as its factorization.

2312113321321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 25.

Adding to 2312113321321 its reverse (1231233112132), we get a palindrome (3543346433453).

The spelling of 2312113321321 in words is "two trillion, three hundred twelve billion, one hundred thirteen million, three hundred twenty-one thousand, three hundred twenty-one".