23002213 has 4 divisors (see below), whose sum is σ = 24771628. Its totient is φ = 21232800.

The previous prime is 23002201. The next prime is 23002237. The reversal of 23002213 is 31220032.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4743684 + 18258529 = 2178^2 + 4273^2 .

It is a cyclic number.

It is not a de Polignac number, because 23002213 - 2⁹ = 23001701 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 1769401 = 23002213 / (2 + 3 + 0 + 0 + 2 + 2 + 1 + 3).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23002193 and 23002202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23002013) 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, 884688 + ... + 884713.

It is an arithmetic number, because the mean of its divisors is an integer number (6192907).

Almost surely, 2^23002213 is an apocalyptic number.

It is an amenable number.

23002213 is a deficient number, since it is larger than the sum of its proper divisors (1769415).

23002213 is a wasteful number, since it uses less digits than its factorization.

23002213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1769414.

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

The square root of 23002213 is about 4796.0622389623. The cubic root of 23002213 is about 284.3958186747.

Adding to 23002213 its reverse (31220032), we get a palindrome (54222245).

The spelling of 23002213 in words is "twenty-three million, two thousand, two hundred thirteen".