113323120111021 has 2 divisors, whose sum is σ = 113323120111022. Its totient is φ = 113323120111020.

The previous prime is 113323120110983. The next prime is 113323120111037. The reversal of 113323120111021 is 120111021323311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112131453137796 + 1191666973225 = 10589214^2 + 1091635^2 .

It is a cyclic number.

It is not a de Polignac number, because 113323120111021 - 2²⁹ = 113322583240109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 113323120110983 and 113323120111001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113323120121021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56661560055510 + 56661560055511.

It is an arithmetic number, because the mean of its divisors is an integer number (56661560055511).

Almost surely, 2^{113323120111021} is an apocalyptic number.

It is an amenable number.

113323120111021 is a deficient number, since it is larger than the sum of its proper divisors (1).

113323120111021 is an equidigital number, since it uses as much as digits as its factorization.

113323120111021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 113323120111021 its reverse (120111021323311), we get a palindrome (233434141434332).

The spelling of 113323120111021 in words is "one hundred thirteen trillion, three hundred twenty-three billion, one hundred twenty million, one hundred eleven thousand, twenty-one".