20331242223 has 4 divisors (see below), whose sum is σ = 27108322968. Its totient is φ = 13554161480.

The previous prime is 20331242207. The next prime is 20331242227. The reversal of 20331242223 is 32224213302.

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 20331242223 - 2⁴ = 20331242207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20331242193 and 20331242202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20331242227) 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, 3388540368 + ... + 3388540373.

It is an arithmetic number, because the mean of its divisors is an integer number (6777080742).

Almost surely, 2^20331242223 is an apocalyptic number.

20331242223 is a deficient number, since it is larger than the sum of its proper divisors (6777080745).

20331242223 is an equidigital number, since it uses as much as digits as its factorization.

20331242223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6777080744.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 20331242223 its reverse (32224213302), we get a palindrome (52555455525).

The spelling of 20331242223 in words is "twenty billion, three hundred thirty-one million, two hundred forty-two thousand, two hundred twenty-three".