113443511 has 8 divisors (see below), whose sum is σ = 114576000. Its totient is φ = 112315320.

The previous prime is 113443493. The next prime is 113443513. The reversal of 113443511 is 115344311.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113443511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113443513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80390 + ... + 81788.

It is an arithmetic number, because the mean of its divisors is an integer number (14322000).

Almost surely, 2^113443511 is an apocalyptic number.

113443511 is a deficient number, since it is larger than the sum of its proper divisors (1132489).

113443511 is a wasteful number, since it uses less digits than its factorization.

113443511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2149.

The product of its digits is 720, while the sum is 23.

The square root of 113443511 is about 10650.9863862461. The cubic root of 113443511 is about 484.0904923233.

Adding to 113443511 its reverse (115344311), we get a palindrome (228787822).

The spelling of 113443511 in words is "one hundred thirteen million, four hundred forty-three thousand, five hundred eleven".