23313213 has 24 divisors (see below), whose sum is σ = 41985216. Its totient is φ = 12110400.

The previous prime is 23313211. The next prime is 23313259. The reversal of 23313213 is 31231332.

It is not a de Polignac number, because 23313213 - 2¹ = 23313211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23313211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16128 + ... + 17513.

It is an arithmetic number, because the mean of its divisors is an integer number (1749384).

Almost surely, 2^23313213 is an apocalyptic number.

It is an amenable number.

23313213 is a deficient number, since it is larger than the sum of its proper divisors (18672003).

23313213 is a wasteful number, since it uses less digits than its factorization.

23313213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33665 (or 33662 counting only the distinct ones).

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

The square root of 23313213 is about 4828.3758138736. The cubic root of 23313213 is about 285.6718039100.

Adding to 23313213 its reverse (31231332), we get a palindrome (54544545).

It can be divided in two parts, 23 and 313213, that added together give a triangular number (313236 = T₇₉₁).

The spelling of 23313213 in words is "twenty-three million, three hundred thirteen thousand, two hundred thirteen".