113223213329921 has 2 divisors, whose sum is σ = 113223213329922. Its totient is φ = 113223213329920.

The previous prime is 113223213329917. The next prime is 113223213330067. The reversal of 113223213329921 is 129923312322311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83367491136400 + 29855722193521 = 9130580^2 + 5464039^2 .

It is a cyclic number.

It is not a de Polignac number, because 113223213329921 - 2² = 113223213329917 is a prime.

It is not a weakly prime, because it can be changed into another prime (113223213329621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56611606664960 + 56611606664961.

It is an arithmetic number, because the mean of its divisors is an integer number (56611606664961).

Almost surely, 2^{113223213329921} is an apocalyptic number.

It is an amenable number.

113223213329921 is a deficient number, since it is larger than the sum of its proper divisors (1).

113223213329921 is an equidigital number, since it uses as much as digits as its factorization.

113223213329921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 209952, while the sum is 44.

The spelling of 113223213329921 in words is "one hundred thirteen trillion, two hundred twenty-three billion, two hundred thirteen million, three hundred twenty-nine thousand, nine hundred twenty-one".