20244151223 has 4 divisors (see below), whose sum is σ = 20247459288. Its totient is φ = 20240843160.

The previous prime is 20244151183. The next prime is 20244151231. The reversal of 20244151223 is 32215144202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32215144202 = 2 ⋅16107572101.

It is a cyclic number.

It is not a de Polignac number, because 20244151223 - 2²⁴ = 20227374007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20244151192 and 20244151201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20244151273) 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, 1644836 + ... + 1657097.

It is an arithmetic number, because the mean of its divisors is an integer number (5061864822).

Almost surely, 2^20244151223 is an apocalyptic number.

20244151223 is a deficient number, since it is larger than the sum of its proper divisors (3308065).

20244151223 is an equidigital number, since it uses as much as digits as its factorization.

20244151223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3308064.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 20244151223 its reverse (32215144202), we get a palindrome (52459295425).

The spelling of 20244151223 in words is "twenty billion, two hundred forty-four million, one hundred fifty-one thousand, two hundred twenty-three".