113303531 has 4 divisors (see below), whose sum is σ = 123603864. Its totient is φ = 103003200.

The previous prime is 113303527. The next prime is 113303537. The reversal of 113303531 is 135303311.

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

It is a cyclic number.

It is not a de Polignac number, because 113303531 - 2² = 113303527 is a prime.

It is a super-2 number, since 2×113303531² = 25675380274135922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113303537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5150150 + ... + 5150171.

It is an arithmetic number, because the mean of its divisors is an integer number (30900966).

Almost surely, 2^113303531 is an apocalyptic number.

113303531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

113303531 is a deficient number, since it is larger than the sum of its proper divisors (10300333).

113303531 is a wasteful number, since it uses less digits than its factorization.

113303531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10300332.

The product of its (nonzero) digits is 405, while the sum is 20.

The square root of 113303531 is about 10644.4131355373. The cubic root of 113303531 is about 483.8913010342.

Adding to 113303531 its reverse (135303311), we get a palindrome (248606842).

The spelling of 113303531 in words is "one hundred thirteen million, three hundred three thousand, five hundred thirty-one".