33220203231023 has 4 divisors (see below), whose sum is σ = 33287861486568. Its totient is φ = 33152544975480.

The previous prime is 33220203230989. The next prime is 33220203231079. The reversal of 33220203231023 is 32013230202233.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 33220203231023 - 2²⁴ = 33220186453807 is a prime.

It is a super-2 number, since 2×33220203231023² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33220203230983 and 33220203231001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33220203231623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33829127036 + ... + 33829128017.

It is an arithmetic number, because the mean of its divisors is an integer number (8321965371642).

Almost surely, 2^{33220203231023} is an apocalyptic number.

33220203231023 is a deficient number, since it is larger than the sum of its proper divisors (67658255545).

33220203231023 is an equidigital number, since it uses as much as digits as its factorization.

33220203231023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67658255544.

The product of its (nonzero) digits is 7776, while the sum is 26.

Adding to 33220203231023 its reverse (32013230202233), we get a palindrome (65233433433256).

The spelling of 33220203231023 in words is "thirty-three trillion, two hundred twenty billion, two hundred three million, two hundred thirty-one thousand, twenty-three".