23019013 has 8 divisors (see below), whose sum is σ = 24688800. Its totient is φ = 21395088.

The previous prime is 23018987. The next prime is 23019041. The reversal of 23019013 is 31091032.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23019013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23019043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10423 + ... + 12436.

It is an arithmetic number, because the mean of its divisors is an integer number (3086100).

Almost surely, 2^23019013 is an apocalyptic number.

It is an amenable number.

23019013 is a deficient number, since it is larger than the sum of its proper divisors (1669787).

23019013 is a wasteful number, since it uses less digits than its factorization.

23019013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22931.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 23019013 is about 4797.8133561030. The cubic root of 23019013 is about 284.4650393628.

The spelling of 23019013 in words is "twenty-three million, nineteen thousand, thirteen".