23311313 has 4 divisors (see below), whose sum is σ = 23706480. Its totient is φ = 22916148.

The previous prime is 23311307. The next prime is 23311357. The reversal of 23311313 is 31311332.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23311313 - 2²² = 19117009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23311291 and 23311300.

It is not an unprimeable number, because it can be changed into a prime (23311303) 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, 197495 + ... + 197612.

It is an arithmetic number, because the mean of its divisors is an integer number (5926620).

Almost surely, 2^23311313 is an apocalyptic number.

It is an amenable number.

23311313 is a deficient number, since it is larger than the sum of its proper divisors (395167).

23311313 is an equidigital number, since it uses as much as digits as its factorization.

23311313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395166.

The product of its digits is 162, while the sum is 17.

The square root of 23311313 is about 4828.1790563317. The cubic root of 23311313 is about 285.6640430582.

Adding to 23311313 its reverse (31311332), we get a palindrome (54622645).

It can be divided in two parts, 2331 and 1313, that multiplied together give a palindrome (3060603).

The spelling of 23311313 in words is "twenty-three million, three hundred eleven thousand, three hundred thirteen".