111005401 has 8 divisors (see below), whose sum is σ = 120262464. Its totient is φ = 101850960.

The previous prime is 111005381. The next prime is 111005407. The reversal of 111005401 is 104500111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111005401 - 2⁵ = 111005369 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111005407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23395 + ... + 27736.

It is an arithmetic number, because the mean of its divisors is an integer number (15032808).

Almost surely, 2^111005401 is an apocalyptic number.

It is an amenable number.

111005401 is a deficient number, since it is larger than the sum of its proper divisors (9257063).

111005401 is a wasteful number, since it uses less digits than its factorization.

111005401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51311.

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 111005401 is about 10535.9100698516. The cubic root of 111005401 is about 480.5973480314.

Adding to 111005401 its reverse (104500111), we get a palindrome (215505512).

The spelling of 111005401 in words is "one hundred eleven million, five thousand, four hundred one".