23120613 has 16 divisors (see below), whose sum is σ = 34347840. Its totient is φ = 15370992.

The previous prime is 23120611. The next prime is 23120623. The reversal of 23120613 is 31602132.

23120613 is a `hidden beast` number, since 2 + 31 + 20 + 613 = 666.

It is not a de Polignac number, because 23120613 - 2¹ = 23120611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23120611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10995 + ... + 12927.

It is an arithmetic number, because the mean of its divisors is an integer number (2146740).

Almost surely, 2^23120613 is an apocalyptic number.

It is an amenable number.

23120613 is a deficient number, since it is larger than the sum of its proper divisors (11227227).

23120613 is a wasteful number, since it uses less digits than its factorization.

23120613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2385 (or 2379 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 23120613 is about 4808.3898552426. The cubic root of 23120613 is about 284.8829436185.

Adding to 23120613 its reverse (31602132), we get a palindrome (54722745).

The spelling of 23120613 in words is "twenty-three million, one hundred twenty thousand, six hundred thirteen".