33121323223 has 2 divisors, whose sum is σ = 33121323224. Its totient is φ = 33121323222.

The previous prime is 33121323187. The next prime is 33121323271. The reversal of 33121323223 is 32232312133.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33121323223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33121323623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16560661611 + 16560661612.

It is an arithmetic number, because the mean of its divisors is an integer number (16560661612).

Almost surely, 2^33121323223 is an apocalyptic number.

33121323223 is a deficient number, since it is larger than the sum of its proper divisors (1).

33121323223 is an equidigital number, since it uses as much as digits as its factorization.

33121323223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 25.

Adding to 33121323223 its reverse (32232312133), we get a palindrome (65353635356).

The spelling of 33121323223 in words is "thirty-three billion, one hundred twenty-one million, three hundred twenty-three thousand, two hundred twenty-three".