23203313 has 12 divisors (see below), whose sum is σ = 28413360. Its totient is φ = 18841032.

The previous prime is 23203309. The next prime is 23203319. The reversal of 23203313 is 31330232.

It is not a de Polignac number, because 23203313 - 2² = 23203309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23203291 and 23203300.

It is not an unprimeable number, because it can be changed into a prime (23203319) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11531 + ... + 13392.

It is an arithmetic number, because the mean of its divisors is an integer number (2367780).

Almost surely, 2^23203313 is an apocalyptic number.

It is an amenable number.

23203313 is a deficient number, since it is larger than the sum of its proper divisors (5210047).

23203313 is a wasteful number, since it uses less digits than its factorization.

23203313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24956 (or 24949 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 23203313 is about 4816.9817313334. The cubic root of 23203313 is about 285.2222048770. Note that the first 4 decimals are identical.

Adding to 23203313 its reverse (31330232), we get a palindrome (54533545).

The spelling of 23203313 in words is "twenty-three million, two hundred three thousand, three hundred thirteen".