20441014091 has 2 divisors, whose sum is σ = 20441014092. Its totient is φ = 20441014090.

The previous prime is 20441014073. The next prime is 20441014127. The reversal of 20441014091 is 19041014402.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20441014091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20441014091.

It is not a weakly prime, because it can be changed into another prime (20441014001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10220507045 + 10220507046.

It is an arithmetic number, because the mean of its divisors is an integer number (10220507046).

Almost surely, 2^20441014091 is an apocalyptic number.

20441014091 is a deficient number, since it is larger than the sum of its proper divisors (1).

20441014091 is an equidigital number, since it uses as much as digits as its factorization.

20441014091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 20441014091 its reverse (19041014402), we get a palindrome (39482028493).

The spelling of 20441014091 in words is "twenty billion, four hundred forty-one million, fourteen thousand, ninety-one".