23403313 has 2 divisors, whose sum is σ = 23403314. Its totient is φ = 23403312.

The previous prime is 23403293. The next prime is 23403329. The reversal of 23403313 is 31330432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12723489 + 10679824 = 3567^2 + 3268^2 .

It is a cyclic number.

It is not a de Polignac number, because 23403313 - 2⁹ = 23402801 is a prime.

It is not a weakly prime, because it can be changed into another prime (23403343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11701656 + 11701657.

It is an arithmetic number, because the mean of its divisors is an integer number (11701657).

Almost surely, 2^23403313 is an apocalyptic number.

It is an amenable number.

23403313 is a deficient number, since it is larger than the sum of its proper divisors (1).

23403313 is an equidigital number, since it uses as much as digits as its factorization.

23403313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 23403313 is about 4837.6970760890. The cubic root of 23403313 is about 286.0393485887.

Adding to 23403313 its reverse (31330432), we get a palindrome (54733745).

It can be divided in two parts, 23403 and 313, that added together give a square (23716 = 154²).

The spelling of 23403313 in words is "twenty-three million, four hundred three thousand, three hundred thirteen".