113311143 has 24 divisors (see below), whose sum is σ = 185168256. Its totient is φ = 68671800.

The previous prime is 113311129. The next prime is 113311153. The reversal of 113311143 is 341113311.

It is not a de Polignac number, because 113311143 - 2⁴ = 113311127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113311123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18523 + ... + 23868.

It is an arithmetic number, because the mean of its divisors is an integer number (7715344).

Almost surely, 2^113311143 is an apocalyptic number.

113311143 is a deficient number, since it is larger than the sum of its proper divisors (71857113).

113311143 is an equidigital number, since it uses as much as digits as its factorization.

113311143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42417 (or 42405 counting only the distinct ones).

The product of its digits is 108, while the sum is 18.

The square root of 113311143 is about 10644.7706879951. The cubic root of 113311143 is about 483.9021371134.

Adding to 113311143 its reverse (341113311), we get a palindrome (454424454).

The spelling of 113311143 in words is "one hundred thirteen million, three hundred eleven thousand, one hundred forty-three".