23004021403 has 4 divisors (see below), whose sum is σ = 25095296088. Its totient is φ = 20912746720.

The previous prime is 23004021349. The next prime is 23004021431. The reversal of 23004021403 is 30412040032.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23004021403 - 2²⁵ = 22970466971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23004021503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1045637326 + ... + 1045637347.

It is an arithmetic number, because the mean of its divisors is an integer number (6273824022).

Almost surely, 2^23004021403 is an apocalyptic number.

23004021403 is a deficient number, since it is larger than the sum of its proper divisors (2091274685).

23004021403 is a wasteful number, since it uses less digits than its factorization.

23004021403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2091274684.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 23004021403 its reverse (30412040032), we get a palindrome (53416061435).

The spelling of 23004021403 in words is "twenty-three billion, four million, twenty-one thousand, four hundred three".