20244111231 has 8 divisors (see below), whose sum is σ = 26993662384. Its totient is φ = 13495317120.

The previous prime is 20244111161. The next prime is 20244111253. The reversal of 20244111231 is 13211144202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20244111231 - 2⁷ = 20244111103 is a prime.

It is a super-2 number, since 2×20244111231² (a number of 21 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 = 20244111198 and 20244111207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20244111271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123610 + ... + 236151.

It is an arithmetic number, because the mean of its divisors is an integer number (3374207798).

Almost surely, 2^20244111231 is an apocalyptic number.

20244111231 is a deficient number, since it is larger than the sum of its proper divisors (6749551153).

20244111231 is a wasteful number, since it uses less digits than its factorization.

20244111231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378521.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 20244111231 its reverse (13211144202), we get a palindrome (33455255433).

The spelling of 20244111231 in words is "twenty billion, two hundred forty-four million, one hundred eleven thousand, two hundred thirty-one".