23212003 has 6 divisors (see below), whose sum is σ = 23463276. Its totient is φ = 22963392.

The previous prime is 23211997. The next prime is 23212009. The reversal of 23212003 is 30021232.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23211997) and next prime (23212009).

It is not a de Polignac number, because 23212003 - 2¹⁷ = 23080931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23212009) 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, 8176 + ... + 10642.

It is an arithmetic number, because the mean of its divisors is an integer number (3910546).

Almost surely, 2^23212003 is an apocalyptic number.

23212003 is a deficient number, since it is larger than the sum of its proper divisors (251273).

23212003 is an frugal number, since it uses more digits than its factorization.

23212003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2661 (or 2564 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 23212003 is about 4817.8836640168. The cubic root of 23212003 is about 285.2578071435.

Adding to 23212003 its reverse (30021232), we get a palindrome (53233235).

The spelling of 23212003 in words is "twenty-three million, two hundred twelve thousand, three".