23015013 has 16 divisors (see below), whose sum is σ = 35137536. Its totient is φ = 13126320.

The previous prime is 23015011. The next prime is 23015017. The reversal of 23015013 is 31051032.

It is a happy number.

It is not a de Polignac number, because 23015013 - 2¹ = 23015011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23014983 and 23015001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23015011) 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, 21120 + ... + 22182.

It is an arithmetic number, because the mean of its divisors is an integer number (2196096).

Almost surely, 2^23015013 is an apocalyptic number.

It is an amenable number.

23015013 is a deficient number, since it is larger than the sum of its proper divisors (12122523).

23015013 is a wasteful number, since it uses less digits than its factorization.

23015013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2104.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 23015013 is about 4797.3964814261. The cubic root of 23015013 is about 284.4485613022.

Adding to 23015013 its reverse (31051032), we get a palindrome (54066045).

The spelling of 23015013 in words is "twenty-three million, fifteen thousand, thirteen".