20244401323 has 4 divisors (see below), whose sum is σ = 20529533808. Its totient is φ = 19959268840.

The previous prime is 20244401299. The next prime is 20244401339. The reversal of 20244401323 is 32310444202.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32310444202 = 2 ⋅16155222101.

It is a cyclic number.

It is not a de Polignac number, because 20244401323 - 2¹³ = 20244393131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20244402323) 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 3 ways as a sum of consecutive naturals, for example, 142566136 + ... + 142566277.

It is an arithmetic number, because the mean of its divisors is an integer number (5132383452).

Almost surely, 2^20244401323 is an apocalyptic number.

20244401323 is a deficient number, since it is larger than the sum of its proper divisors (285132485).

20244401323 is an equidigital number, since it uses as much as digits as its factorization.

20244401323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285132484.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 20244401323 its reverse (32310444202), we get a palindrome (52554845525).

The spelling of 20244401323 in words is "twenty billion, two hundred forty-four million, four hundred one thousand, three hundred twenty-three".