111431201 has 16 divisors (see below), whose sum is σ = 130313088. Its totient is φ = 93312000.

The previous prime is 111431183. The next prime is 111431213. The reversal of 111431201 is 102134111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111431201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111431261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68801 + ... + 70401.

It is an arithmetic number, because the mean of its divisors is an integer number (8144568).

Almost surely, 2^111431201 is an apocalyptic number.

It is an amenable number.

111431201 is a deficient number, since it is larger than the sum of its proper divisors (18881887).

111431201 is a wasteful number, since it uses less digits than its factorization.

111431201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1832.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 111431201 is about 10556.0978112179. The cubic root of 111431201 is about 481.2110636740.

Adding to 111431201 its reverse (102134111), we get a palindrome (213565312).

The spelling of 111431201 in words is "one hundred eleven million, four hundred thirty-one thousand, two hundred one".