20240444231 has 4 divisors (see below), whose sum is σ = 23131936272. Its totient is φ = 17348952192.

The previous prime is 20240444219. The next prime is 20240444233. The reversal of 20240444231 is 13244404202.

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: 13244404202 = 2 ⋅6622202101.

It is a cyclic number.

It is not a de Polignac number, because 20240444231 - 2⁶ = 20240444167 is a prime.

It is a super-2 number, since 2×20240444231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20240444231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20240444233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1445746010 + ... + 1445746023.

It is an arithmetic number, because the mean of its divisors is an integer number (5782984068).

Almost surely, 2^20240444231 is an apocalyptic number.

20240444231 is a deficient number, since it is larger than the sum of its proper divisors (2891492041).

20240444231 is an equidigital number, since it uses as much as digits as its factorization.

20240444231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2891492040.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 20240444231 its reverse (13244404202), we get a palindrome (33484848433).

The spelling of 20240444231 in words is "twenty billion, two hundred forty million, four hundred forty-four thousand, two hundred thirty-one".