113123331111 has 8 divisors (see below), whose sum is σ = 172378409344. Its totient is φ = 64641903480.

The previous prime is 113123331073. The next prime is 113123331121. The reversal of 113123331111 is 111133321311.

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-113123331111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 5386825291 = 113123331111 / (1 + 1 + 3 + 1 + 2 + 3 + 3 + 3 + 1 + 1 + 1 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113123331121) 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, 2693412625 + ... + 2693412666.

It is an arithmetic number, because the mean of its divisors is an integer number (21547301168).

Almost surely, 2^113123331111 is an apocalyptic number.

113123331111 is a deficient number, since it is larger than the sum of its proper divisors (59255078233).

113123331111 is an equidigital number, since it uses as much as digits as its factorization.

113123331111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5386825301.

The product of its digits is 162, while the sum is 21.

Adding to 113123331111 its reverse (111133321311), we get a palindrome (224256652422).

The spelling of 113123331111 in words is "one hundred thirteen billion, one hundred twenty-three million, three hundred thirty-one thousand, one hundred eleven".