20441000431 has 2 divisors, whose sum is σ = 20441000432. Its totient is φ = 20441000430.

The previous prime is 20441000399. The next prime is 20441000491. The reversal of 20441000431 is 13400014402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20441000431 - 2⁵ = 20441000399 is a prime.

It is a super-2 number, since 2×20441000431² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20441000399 and 20441000408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20441000491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10220500215 + 10220500216.

It is an arithmetic number, because the mean of its divisors is an integer number (10220500216).

Almost surely, 2^20441000431 is an apocalyptic number.

20441000431 is a deficient number, since it is larger than the sum of its proper divisors (1).

20441000431 is an equidigital number, since it uses as much as digits as its factorization.

20441000431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 20441000431 its reverse (13400014402), we get a palindrome (33841014833).

It can be divided in two parts, 20 and 441000431, that added together give a triangular number (441000451 = T₂₉₆₉₈).

The spelling of 20441000431 in words is "twenty billion, four hundred forty-one million, four hundred thirty-one", and thus it is an aban number.