111203113 has 8 divisors (see below), whose sum is σ = 127210880. Its totient is φ = 95225760.

The previous prime is 111203089. The next prime is 111203123. The reversal of 111203113 is 311302111.

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

It is a de Polignac number, because none of the positive numbers 2^k-111203113 is a prime.

It is a super-2 number, since 2×111203113² = 24732264681781538, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111203093 and 111203102.

It is not an unprimeable number, because it can be changed into a prime (111203123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 868 + ... + 14938.

It is an arithmetic number, because the mean of its divisors is an integer number (15901360).

Almost surely, 2^111203113 is an apocalyptic number.

It is an amenable number.

111203113 is a deficient number, since it is larger than the sum of its proper divisors (16007767).

111203113 is a wasteful number, since it uses less digits than its factorization.

111203113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15207.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 111203113 is about 10545.2886636640. The cubic root of 111203113 is about 480.8825098476.

Adding to 111203113 its reverse (311302111), we get a palindrome (422505224).

The spelling of 111203113 in words is "one hundred eleven million, two hundred three thousand, one hundred thirteen".