20041244401 has 2 divisors, whose sum is σ = 20041244402. Its totient is φ = 20041244400.

The previous prime is 20041244387. The next prime is 20041244449. The reversal of 20041244401 is 10444214002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19243238400 + 798006001 = 138720^2 + 28249^2 .

It is a cyclic number.

It is not a de Polignac number, because 20041244401 - 2²³ = 20032855793 is a prime.

It is a super-2 number, since 2×20041244401² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20041244471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10020622200 + 10020622201.

It is an arithmetic number, because the mean of its divisors is an integer number (10020622201).

Almost surely, 2^20041244401 is an apocalyptic number.

It is an amenable number.

20041244401 is a deficient number, since it is larger than the sum of its proper divisors (1).

20041244401 is an equidigital number, since it uses as much as digits as its factorization.

20041244401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 20041244401 its reverse (10444214002), we get a palindrome (30485458403).

The spelling of 20041244401 in words is "twenty billion, forty-one million, two hundred forty-four thousand, four hundred one".