111680401 has 16 divisors (see below), whose sum is σ = 129927168. Its totient is φ = 94021200.

The previous prime is 111680389. The next prime is 111680431. The reversal of 111680401 is 104086111.

It is not a de Polignac number, because 111680401 - 2⁵ = 111680369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111680431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122136 + ... + 123046.

It is an arithmetic number, because the mean of its divisors is an integer number (8120448).

Almost surely, 2^111680401 is an apocalyptic number.

It is an amenable number.

111680401 is a deficient number, since it is larger than the sum of its proper divisors (18246767).

111680401 is an equidigital number, since it uses as much as digits as its factorization.

111680401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212.

The product of its (nonzero) digits is 192, while the sum is 22.

The square root of 111680401 is about 10567.8948234736. The cubic root of 111680401 is about 481.5695165844.

The spelling of 111680401 in words is "one hundred eleven million, six hundred eighty thousand, four hundred one".