23220003 has 4 divisors (see below), whose sum is σ = 30960008. Its totient is φ = 15480000.

The previous prime is 23219983. The next prime is 23220019. The reversal of 23220003 is 30002232.

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

It is not a de Polignac number, because 23220003 - 2⁵ = 23219971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23220073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3869998 + ... + 3870003.

It is an arithmetic number, because the mean of its divisors is an integer number (7740002).

Almost surely, 2^23220003 is an apocalyptic number.

23220003 is a deficient number, since it is larger than the sum of its proper divisors (7740005).

23220003 is an equidigital number, since it uses as much as digits as its factorization.

23220003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7740004.

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 23220003 is about 4818.7138325491. The cubic root of 23220003 is about 285.2905746782.

Adding to 23220003 its reverse (30002232), we get a palindrome (53222235).

The spelling of 23220003 in words is "twenty-three million, two hundred twenty thousand, three".