23123313 has 10 divisors (see below), whose sum is σ = 34542354. Its totient is φ = 15415488.

The previous prime is 23123311. The next prime is 23123333. The reversal of 23123313 is 31332132.

It can be written as a sum of positive squares in only one way, i.e., 22496049 + 627264 = 4743^2 + 792^2 .

It is not a de Polignac number, because 23123313 - 2¹ = 23123311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23123311) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 142656 + ... + 142817.

Almost surely, 2^23123313 is an apocalyptic number.

It is an amenable number.

23123313 is a deficient number, since it is larger than the sum of its proper divisors (11419041).

23123313 is an equidigital number, since it uses as much as digits as its factorization.

23123313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285485 (or 285476 counting only the distinct ones).

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

The square root of 23123313 is about 4808.6706063111. The cubic root of 23123313 is about 284.8940326267.

Adding to 23123313 its reverse (31332132), we get a palindrome (54455445).

It can be divided in two parts, 23123 and 313, that added together give a triangular number (23436 = T₂₁₆).

The spelling of 23123313 in words is "twenty-three million, one hundred twenty-three thousand, three hundred thirteen".