112321921 has 2 divisors, whose sum is σ = 112321922. Its totient is φ = 112321920.

The previous prime is 112321861. The next prime is 112321927. The reversal of 112321921 is 129123211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85655025 + 26666896 = 9255^2 + 5164^2 .

It is a cyclic number.

It is not a de Polignac number, because 112321921 - 2⁷ = 112321793 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 112321892 and 112321901.

It is not a weakly prime, because it can be changed into another prime (112321927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56160960 + 56160961.

It is an arithmetic number, because the mean of its divisors is an integer number (56160961).

Almost surely, 2^112321921 is an apocalyptic number.

It is an amenable number.

112321921 is a deficient number, since it is larger than the sum of its proper divisors (1).

112321921 is an equidigital number, since it uses as much as digits as its factorization.

112321921 is an odious number, because the sum of its binary digits is odd.

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

The square root of 112321921 is about 10598.2036685469. The cubic root of 112321921 is about 482.4898416611.

The spelling of 112321921 in words is "one hundred twelve million, three hundred twenty-one thousand, nine hundred twenty-one".