113403311 has 24 divisors (see below), whose sum is σ = 142497120. Its totient is φ = 88284672.

The previous prime is 113403299. The next prime is 113403313. The reversal of 113403311 is 113304311.

It is not a de Polignac number, because 113403311 - 2²² = 109209007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 113403311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113403313) 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, 57701 + ... + 59633.

It is an arithmetic number, because the mean of its divisors is an integer number (5937380).

Almost surely, 2^113403311 is an apocalyptic number.

113403311 is a deficient number, since it is larger than the sum of its proper divisors (29093809).

113403311 is a wasteful number, since it uses less digits than its factorization.

113403311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2003 (or 1986 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 113403311 is about 10649.0990698744. The cubic root of 113403311 is about 484.0333045748.

Adding to 113403311 its reverse (113304311), we get a palindrome (226707622).

The spelling of 113403311 in words is "one hundred thirteen million, four hundred three thousand, three hundred eleven".