111307057 has 4 divisors (see below), whose sum is σ = 111364900. Its totient is φ = 111249216.

The previous prime is 111307037. The next prime is 111307103. The reversal of 111307057 is 750703111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 750703111 = 181 ⋅4147531.

It can be written as a sum of positive squares in 2 ways, for example, as 89038096 + 22268961 = 9436^2 + 4719^2 .

It is a cyclic number.

It is not a de Polignac number, because 111307057 - 2⁷ = 111306929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111307037) 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, 25932 + ... + 29917.

It is an arithmetic number, because the mean of its divisors is an integer number (27841225).

Almost surely, 2^111307057 is an apocalyptic number.

It is an amenable number.

111307057 is a deficient number, since it is larger than the sum of its proper divisors (57843).

111307057 is an equidigital number, since it uses as much as digits as its factorization.

111307057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57842.

The product of its (nonzero) digits is 735, while the sum is 25.

The square root of 111307057 is about 10550.2159693534. The cubic root of 111307057 is about 481.0322936811.

The spelling of 111307057 in words is "one hundred eleven million, three hundred seven thousand, fifty-seven".