23312013 has 8 divisors (see below), whose sum is σ = 31358208. Its totient is φ = 15403584.

The previous prime is 23312011. The next prime is 23312017. The reversal of 23312013 is 31021332.

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

It is not a de Polignac number, because 23312013 - 2¹ = 23312011 is a prime.

It is a super-2 number, since 2×23312013² = 1086899900224338, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23311983 and 23312001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23312011) 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, 34045 + ... + 34722.

It is an arithmetic number, because the mean of its divisors is an integer number (3919776).

Almost surely, 2^23312013 is an apocalyptic number.

It is an amenable number.

23312013 is a deficient number, since it is larger than the sum of its proper divisors (8046195).

23312013 is a wasteful number, since it uses less digits than its factorization.

23312013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68883.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 23312013 is about 4828.2515468853. The cubic root of 23312013 is about 285.6669023685. Note that the first 3 decimals are identical.

Adding to 23312013 its reverse (31021332), we get a palindrome (54333345).

It can be divided in two parts, 233 and 12013, that added together give a triangular number (12246 = T₁₅₆).

The spelling of 23312013 in words is "twenty-three million, three hundred twelve thousand, thirteen".