23220312033 has 16 divisors (see below), whose sum is σ = 31538160000. Its totient is φ = 15192468480.

The previous prime is 23220312029. The next prime is 23220312043. The reversal of 23220312033 is 33021302232.

It is not a de Polignac number, because 23220312033 - 2² = 23220312029 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23220312023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59133 + ... + 223466.

It is an arithmetic number, because the mean of its divisors is an integer number (1971135000).

Almost surely, 2^23220312033 is an apocalyptic number.

It is an amenable number.

23220312033 is a deficient number, since it is larger than the sum of its proper divisors (8317847967).

23220312033 is a wasteful number, since it uses less digits than its factorization.

23220312033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283112.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 23220312033 its reverse (33021302232), we get a palindrome (56241614265).

The spelling of 23220312033 in words is "twenty-three billion, two hundred twenty million, three hundred twelve thousand, thirty-three".