2313012220121 has 2 divisors, whose sum is σ = 2313012220122. Its totient is φ = 2313012220120.

The previous prime is 2313012220037. The next prime is 2313012220153. The reversal of 2313012220121 is 1210222103132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2221781038096 + 91231182025 = 1490564^2 + 302045^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2313012220121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2313012220093 and 2313012220102.

It is not a weakly prime, because it can be changed into another prime (2313012220921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1156506110060 + 1156506110061.

It is an arithmetic number, because the mean of its divisors is an integer number (1156506110061).

Almost surely, 2^{2313012220121} is an apocalyptic number.

It is an amenable number.

2313012220121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2313012220121 is an equidigital number, since it uses as much as digits as its factorization.

2313012220121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 2313012220121 its reverse (1210222103132), we get a palindrome (3523234323253).

The spelling of 2313012220121 in words is "two trillion, three hundred thirteen billion, twelve million, two hundred twenty thousand, one hundred twenty-one".