111031401 has 32 divisors (see below), whose sum is σ = 166440960. Its totient is φ = 65366784.

The previous prime is 111031397. The next prime is 111031411. The reversal of 111031401 is 104130111.

It is not a de Polignac number, because 111031401 - 2² = 111031397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111031411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 143251 + ... + 144023.

It is an arithmetic number, because the mean of its divisors is an integer number (5201280).

Almost surely, 2^111031401 is an apocalyptic number.

It is an amenable number.

111031401 is a deficient number, since it is larger than the sum of its proper divisors (55409559).

111031401 is a wasteful number, since it uses less digits than its factorization.

111031401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 111031401 is about 10537.1438729857. The cubic root of 111031401 is about 480.6348673938.

Adding to 111031401 its reverse (104130111), we get a palindrome (215161512).

The spelling of 111031401 in words is "one hundred eleven million, thirty-one thousand, four hundred one".