113531043 has 4 divisors (see below), whose sum is σ = 151374728. Its totient is φ = 75687360.

The previous prime is 113531039. The next prime is 113531063. The reversal of 113531043 is 340135311.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 113531043 - 2² = 113531039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113531063) 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, 18921838 + ... + 18921843.

It is an arithmetic number, because the mean of its divisors is an integer number (37843682).

Almost surely, 2^113531043 is an apocalyptic number.

113531043 is a deficient number, since it is larger than the sum of its proper divisors (37843685).

113531043 is an equidigital number, since it uses as much as digits as its factorization.

113531043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37843684.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 113531043 is about 10655.0946969044. The cubic root of 113531043 is about 484.2149669478.

Adding to 113531043 its reverse (340135311), we get a palindrome (453666354).

The spelling of 113531043 in words is "one hundred thirteen million, five hundred thirty-one thousand, forty-three".