111580316149 has 4 divisors (see below), whose sum is σ = 111594070764. Its totient is φ = 111566561536.

The previous prime is 111580316117. The next prime is 111580316173. The reversal of 111580316149 is 941613085111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 71921585124 + 39658731025 = 268182^2 + 199145^2 .

It is a cyclic number.

It is not a de Polignac number, because 111580316149 - 2⁵ = 111580316117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111580316249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6865132 + ... + 6881365.

It is an arithmetic number, because the mean of its divisors is an integer number (27898517691).

Almost surely, 2^111580316149 is an apocalyptic number.

It is an amenable number.

111580316149 is a deficient number, since it is larger than the sum of its proper divisors (13754615).

111580316149 is an equidigital number, since it uses as much as digits as its factorization.

111580316149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13754614.

The product of its (nonzero) digits is 25920, while the sum is 40.

The spelling of 111580316149 in words is "one hundred eleven billion, five hundred eighty million, three hundred sixteen thousand, one hundred forty-nine".