23022013 has 12 divisors (see below), whose sum is σ = 27037152. Its totient is φ = 19544280.

The previous prime is 23022001. The next prime is 23022017. The reversal of 23022013 is 31022032.

It is a happy number.

It is not a de Polignac number, because 23022013 - 2⁹ = 23021501 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23021984 and 23022002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23022017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3048 + ... + 7438.

It is an arithmetic number, because the mean of its divisors is an integer number (2253096).

Almost surely, 2^23022013 is an apocalyptic number.

It is an amenable number.

23022013 is a deficient number, since it is larger than the sum of its proper divisors (4015139).

23022013 is a wasteful number, since it uses less digits than its factorization.

23022013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4512 (or 4505 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 23022013 is about 4798.1259883417. The cubic root of 23022013 is about 284.4773966556.

Adding to 23022013 its reverse (31022032), we get a palindrome (54044045).

The spelling of 23022013 in words is "twenty-three million, twenty-two thousand, thirteen".