23520113 has 4 divisors (see below), whose sum is σ = 23661120. Its totient is φ = 23379108.

The previous prime is 23520109. The next prime is 23520121. The reversal of 23520113 is 31102532.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23520113 - 2² = 23520109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23520091 and 23520100.

It is not an unprimeable number, because it can be changed into a prime (23520713) 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, 70253 + ... + 70586.

It is an arithmetic number, because the mean of its divisors is an integer number (5915280).

Almost surely, 2^23520113 is an apocalyptic number.

It is an amenable number.

23520113 is a deficient number, since it is larger than the sum of its proper divisors (141007).

23520113 is a wasteful number, since it uses less digits than its factorization.

23520113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141006.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 23520113 is about 4849.7539112825. The cubic root of 23520113 is about 286.5144091102.

Adding to 23520113 its reverse (31102532), we get a palindrome (54622645).

The spelling of 23520113 in words is "twenty-three million, five hundred twenty thousand, one hundred thirteen".