23001903 has 6 divisors (see below), whose sum is σ = 33224984. Its totient is φ = 15334596.

The previous prime is 23001899. The next prime is 23001911. The reversal of 23001903 is 30910032.

It is not a de Polignac number, because 23001903 - 2² = 23001899 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23001973) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1277875 + ... + 1277892.

Almost surely, 2^23001903 is an apocalyptic number.

23001903 is a deficient number, since it is larger than the sum of its proper divisors (10223081).

23001903 is a wasteful number, since it uses less digits than its factorization.

23001903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2555773 (or 2555770 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 23001903 is about 4796.0299206740. The cubic root of 23001903 is about 284.3945410715.

Adding to 23001903 its reverse (30910032), we get a palindrome (53911935).

The spelling of 23001903 in words is "twenty-three million, one thousand, nine hundred three".