112321129 has 2 divisors, whose sum is σ = 112321130. Its totient is φ = 112321128.

The previous prime is 112321127. The next prime is 112321133. The reversal of 112321129 is 921123211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110733529 + 1587600 = 10523^2 + 1260^2 .

It is a cyclic number.

It is not a de Polignac number, because 112321129 - 2¹ = 112321127 is a prime.

Together with 112321127, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (112321127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56160564 + 56160565.

It is an arithmetic number, because the mean of its divisors is an integer number (56160565).

Almost surely, 2^112321129 is an apocalyptic number.

It is an amenable number.

112321129 is a deficient number, since it is larger than the sum of its proper divisors (1).

112321129 is an equidigital number, since it uses as much as digits as its factorization.

112321129 is an evil number, because the sum of its binary digits is even.

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

The square root of 112321129 is about 10598.1663036584. The cubic root of 112321129 is about 482.4887076205.

The spelling of 112321129 in words is "one hundred twelve million, three hundred twenty-one thousand, one hundred twenty-nine".