113402123 has 16 divisors (see below), whose sum is σ = 120637440. Its totient is φ = 106444800.

The previous prime is 113402099. The next prime is 113402147. The reversal of 113402123 is 321204311.

It is an interprime number because it is at equal distance from previous prime (113402099) and next prime (113402147).

It is a cyclic number.

It is not a de Polignac number, because 113402123 - 2⁶ = 113402059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113402173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147083 + ... + 147851.

It is an arithmetic number, because the mean of its divisors is an integer number (7539840).

Almost surely, 2^113402123 is an apocalyptic number.

113402123 is a deficient number, since it is larger than the sum of its proper divisors (7235317).

113402123 is an equidigital number, since it uses as much as digits as its factorization.

113402123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 113402123 is about 10649.0432903618. The cubic root of 113402123 is about 484.0316143432.

Adding to 113402123 its reverse (321204311), we get a palindrome (434606434).

The spelling of 113402123 in words is "one hundred thirteen million, four hundred two thousand, one hundred twenty-three".