111011401 has 4 divisors (see below), whose sum is σ = 111301632. Its totient is φ = 110721172.

The previous prime is 111011389. The next prime is 111011431. The reversal of 111011401 is 104110111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 111011401 - 2¹⁵ = 110978633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111011431) 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, 144541 + ... + 145306.

It is an arithmetic number, because the mean of its divisors is an integer number (27825408).

Almost surely, 2^111011401 is an apocalyptic number.

It is an amenable number.

111011401 is a deficient number, since it is larger than the sum of its proper divisors (290231).

111011401 is an equidigital number, since it uses as much as digits as its factorization.

111011401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290230.

The product of its (nonzero) digits is 4, while the sum is 10.

The square root of 111011401 is about 10536.1948064754. The cubic root of 111011401 is about 480.6060068658.

Adding to 111011401 its reverse (104110111), we get a palindrome (215121512).

The spelling of 111011401 in words is "one hundred eleven million, eleven thousand, four hundred one".