23043403 has 2 divisors, whose sum is σ = 23043404. Its totient is φ = 23043402.

The previous prime is 23043389. The next prime is 23043407. The reversal of 23043403 is 30434032.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23043403 - 2⁹ = 23042891 is a prime.

It is not a weakly prime, because it can be changed into another prime (23043407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11521701 + 11521702.

It is an arithmetic number, because the mean of its divisors is an integer number (11521702).

Almost surely, 2^23043403 is an apocalyptic number.

23043403 is a deficient number, since it is larger than the sum of its proper divisors (1).

23043403 is an equidigital number, since it uses as much as digits as its factorization.

23043403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 23043403 is about 4800.3544660785. The cubic root of 23043403 is about 284.5654730537.

Adding to 23043403 its reverse (30434032), we get a palindrome (53477435).

It can be divided in two parts, 2 and 3043403, that multiplied together give a palindrome (6086806).

The spelling of 23043403 in words is "twenty-three million, forty-three thousand, four hundred three".