23203003221 has 12 divisors (see below), whose sum is σ = 34972642848. Its totient is φ = 14796117864.

The previous prime is 23203003183. The next prime is 23203003303. The reversal of 23203003221 is 12230030232.

It is a happy number.

23203003221 is a `hidden beast` number, since 23 + 20 + 300 + 322 + 1 = 666.

It is not a de Polignac number, because 23203003221 - 2⁶ = 23203003157 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23203003194 and 23203003203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23203003121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56045695 + ... + 56046108.

It is an arithmetic number, because the mean of its divisors is an integer number (2914386904).

Almost surely, 2^23203003221 is an apocalyptic number.

It is an amenable number.

23203003221 is a deficient number, since it is larger than the sum of its proper divisors (11769639627).

23203003221 is a wasteful number, since it uses less digits than its factorization.

23203003221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112091832 (or 112091829 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 23203003221 its reverse (12230030232), we get a palindrome (35433033453).

The spelling of 23203003221 in words is "twenty-three billion, two hundred three million, three thousand, two hundred twenty-one".