111432122209 has 2 divisors, whose sum is σ = 111432122210. Its totient is φ = 111432122208.

The previous prime is 111432122129. The next prime is 111432122227. The reversal of 111432122209 is 902221234111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102994781184 + 8437341025 = 320928^2 + 91855^2 .

It is a cyclic number.

It is not a de Polignac number, because 111432122209 - 2²⁷ = 111297904481 is a prime.

It is a super-2 number, since 2×111432122209² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111432122299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55716061104 + 55716061105.

It is an arithmetic number, because the mean of its divisors is an integer number (55716061105).

Almost surely, 2^111432122209 is an apocalyptic number.

It is an amenable number.

111432122209 is a deficient number, since it is larger than the sum of its proper divisors (1).

111432122209 is an equidigital number, since it uses as much as digits as its factorization.

111432122209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 111432122209 in words is "one hundred eleven billion, four hundred thirty-two million, one hundred twenty-two thousand, two hundred nine".