111612377 has 2 divisors, whose sum is σ = 111612378. Its totient is φ = 111612376.

The previous prime is 111612349. The next prime is 111612379. The reversal of 111612377 is 773216111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90231001 + 21381376 = 9499^2 + 4624^2 .

It is a cyclic number.

It is not a de Polignac number, because 111612377 - 2¹⁴ = 111595993 is a prime.

Together with 111612379, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (111612379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55806188 + 55806189.

It is an arithmetic number, because the mean of its divisors is an integer number (55806189).

Almost surely, 2^111612377 is an apocalyptic number.

It is an amenable number.

111612377 is a deficient number, since it is larger than the sum of its proper divisors (1).

111612377 is an equidigital number, since it uses as much as digits as its factorization.

111612377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1764, while the sum is 29.

The square root of 111612377 is about 10564.6759060560. The cubic root of 111612377 is about 481.4717228273.

Adding to 111612377 its reverse (773216111), we get a palindrome (884828488).

The spelling of 111612377 in words is "one hundred eleven million, six hundred twelve thousand, three hundred seventy-seven".