23403113 has 4 divisors (see below), whose sum is σ = 23505540. Its totient is φ = 23300688.

The previous prime is 23403097. The next prime is 23403131. The reversal of 23403113 is 31130432.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 20403289 + 2999824 = 4517^2 + 1732^2 .

It is a cyclic number.

It is not a de Polignac number, because 23403113 - 2⁴ = 23403097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23403091 and 23403100.

It is not an unprimeable number, because it can be changed into a prime (23403313) 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, 50870 + ... + 51327.

It is an arithmetic number, because the mean of its divisors is an integer number (5876385).

Almost surely, 2^23403113 is an apocalyptic number.

It is an amenable number.

23403113 is a deficient number, since it is larger than the sum of its proper divisors (102427).

23403113 is a wasteful number, since it uses less digits than its factorization.

23403113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102426.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 23403113 is about 4837.6764050523. The cubic root of 23403113 is about 286.0385337748.

Adding to 23403113 its reverse (31130432), we get a palindrome (54533545).

It can be divided in two parts, 234031 and 13, that multiplied together give a palindrome (3042403).

The spelling of 23403113 in words is "twenty-three million, four hundred three thousand, one hundred thirteen".