23502403 has 2 divisors, whose sum is σ = 23502404. Its totient is φ = 23502402.

The previous prime is 23502379. The next prime is 23502407. The reversal of 23502403 is 30420532.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23502403 - 2¹⁷ = 23371331 is a prime.

It is not a weakly prime, because it can be changed into another prime (23502407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11751201 + 11751202.

It is an arithmetic number, because the mean of its divisors is an integer number (11751202).

Almost surely, 2^23502403 is an apocalyptic number.

23502403 is a deficient number, since it is larger than the sum of its proper divisors (1).

23502403 is an equidigital number, since it uses as much as digits as its factorization.

23502403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 23502403 is about 4847.9277016061. The cubic root of 23502403 is about 286.4424785560.

Adding to 23502403 its reverse (30420532), we get a palindrome (53922935).

It can be divided in two parts, 2350 and 2403, that added together give a triangular number (4753 = T₉₇).

The spelling of 23502403 in words is "twenty-three million, five hundred two thousand, four hundred three".