23001003 has 20 divisors (see below), whose sum is σ = 34490808. Its totient is φ = 15275520.

The previous prime is 23000987. The next prime is 23001007. The reversal of 23001003 is 30010032.

It is a happy number.

It is not a de Polignac number, because 23001003 - 2⁴ = 23000987 is a prime.

It is a super-2 number, since 2×23001003² = 1058092278012018, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (23001007) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 35563 + ... + 36203.

Almost surely, 2^23001003 is an apocalyptic number.

23001003 is a deficient number, since it is larger than the sum of its proper divisors (11489805).

23001003 is an equidigital number, since it uses as much as digits as its factorization.

23001003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096 (or 1087 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 9.

The square root of 23001003 is about 4795.9360921514. The cubic root of 23001003 is about 284.3908318361.

Adding to 23001003 its reverse (30010032), we get a palindrome (53011035).

It can be divided in two parts, 2 and 3001003, that multiplied together give a palindrome (6002006).

The spelling of 23001003 in words is "twenty-three million, one thousand, three".