20244250331 has 4 divisors (see below), whose sum is σ = 21124435152. Its totient is φ = 19364065512.

The previous prime is 20244250309. The next prime is 20244250349. The reversal of 20244250331 is 13305244202.

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 20244250331 - 2¹⁰ = 20244249307 is a prime.

It is a super-2 number, since 2×20244250331² (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 20244250331.

It is not an unprimeable number, because it can be changed into a prime (20244253331) 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, 440092376 + ... + 440092421.

It is an arithmetic number, because the mean of its divisors is an integer number (5281108788).

Almost surely, 2^20244250331 is an apocalyptic number.

20244250331 is a deficient number, since it is larger than the sum of its proper divisors (880184821).

20244250331 is an equidigital number, since it uses as much as digits as its factorization.

20244250331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880184820.

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 20244250331 its reverse (13305244202), we get a palindrome (33549494533).

The spelling of 20244250331 in words is "twenty billion, two hundred forty-four million, two hundred fifty thousand, three hundred thirty-one".