20244420331 has 8 divisors (see below), whose sum is σ = 20277885600. Its totient is φ = 20210981760.

The previous prime is 20244420293. The next prime is 20244420367. The reversal of 20244420331 is 13302444202.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20244420331 - 2²⁹ = 19707549419 is a prime.

It is a super-2 number, since 2×20244420331² (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 = 20244420296 and 20244420305.

It is not an unprimeable number, because it can be changed into a prime (20244420731) 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, 1962435 + ... + 1972723.

It is an arithmetic number, because the mean of its divisors is an integer number (2534735700).

Almost surely, 2^20244420331 is an apocalyptic number.

20244420331 is a deficient number, since it is larger than the sum of its proper divisors (33465269).

20244420331 is a wasteful number, since it uses less digits than its factorization.

20244420331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13349.

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

Adding to 20244420331 its reverse (13302444202), we get a palindrome (33546864533).

The spelling of 20244420331 in words is "twenty billion, two hundred forty-four million, four hundred twenty thousand, three hundred thirty-one".