23331213 has 8 divisors (see below), whose sum is σ = 34564800. Its totient is φ = 15554124.

The previous prime is 23331199. The next prime is 23331229. The reversal of 23331213 is 31213332.

It is not a de Polignac number, because 23331213 - 2¹⁴ = 23314829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23321213) 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, 432033 + ... + 432086.

It is an arithmetic number, because the mean of its divisors is an integer number (4320600).

Almost surely, 2^23331213 is an apocalyptic number.

It is an amenable number.

23331213 is a deficient number, since it is larger than the sum of its proper divisors (11233587).

23331213 is an equidigital number, since it uses as much as digits as its factorization.

23331213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864128 (or 864122 counting only the distinct ones).

The product of its digits is 324, while the sum is 18.

The square root of 23331213 is about 4830.2394350591. The cubic root of 23331213 is about 285.7453068580.

Adding to 23331213 its reverse (31213332), we get a palindrome (54544545).

The spelling of 23331213 in words is "twenty-three million, three hundred thirty-one thousand, two hundred thirteen".