23001221033 has 8 divisors (see below), whose sum is σ = 26290005120. Its totient is φ = 19713160800.

The previous prime is 23001221029. The next prime is 23001221107. The reversal of 23001221033 is 33012210032.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23001221033 - 2² = 23001221029 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23001221003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111068 + ... + 241533.

It is an arithmetic number, because the mean of its divisors is an integer number (3286250640).

Almost surely, 2^23001221033 is an apocalyptic number.

It is an amenable number.

23001221033 is a deficient number, since it is larger than the sum of its proper divisors (3288784087).

23001221033 is an equidigital number, since it uses as much as digits as its factorization.

23001221033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361927.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 23001221033 its reverse (33012210032), we get a palindrome (56013431065).

The spelling of 23001221033 in words is "twenty-three billion, one million, two hundred twenty-one thousand, thirty-three".