111522373 has 2 divisors, whose sum is σ = 111522374. Its totient is φ = 111522372.

The previous prime is 111522353. The next prime is 111522401. The reversal of 111522373 is 373225111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80586529 + 30935844 = 8977^2 + 5562^2 .

It is a cyclic number.

It is not a de Polignac number, because 111522373 - 2²¹ = 109425221 is a prime.

It is a super-2 number, since 2×111522373² = 24874479359102258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111522353) 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, 55761186 + 55761187.

It is an arithmetic number, because the mean of its divisors is an integer number (55761187).

Almost surely, 2^111522373 is an apocalyptic number.

It is an amenable number.

111522373 is a deficient number, since it is larger than the sum of its proper divisors (1).

111522373 is an equidigital number, since it uses as much as digits as its factorization.

111522373 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1260, while the sum is 25.

The square root of 111522373 is about 10560.4153800880. The cubic root of 111522373 is about 481.3422687423.

Adding to 111522373 its reverse (373225111), we get a palindrome (484747484).

The spelling of 111522373 in words is "one hundred eleven million, five hundred twenty-two thousand, three hundred seventy-three".