20044134401 has 2 divisors, whose sum is σ = 20044134402. Its totient is φ = 20044134400.

The previous prime is 20044134391. The next prime is 20044134443. The reversal of 20044134401 is 10443144002.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17365968400 + 2678166001 = 131780^2 + 51751^2 .

It is a cyclic number.

It is not a de Polignac number, because 20044134401 - 2²² = 20039940097 is a prime.

It is not a weakly prime, because it can be changed into another prime (20044134491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10022067200 + 10022067201.

It is an arithmetic number, because the mean of its divisors is an integer number (10022067201).

Almost surely, 2^20044134401 is an apocalyptic number.

It is an amenable number.

20044134401 is a deficient number, since it is larger than the sum of its proper divisors (1).

20044134401 is an equidigital number, since it uses as much as digits as its factorization.

20044134401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 20044134401 its reverse (10443144002), we get a palindrome (30487278403).

The spelling of 20044134401 in words is "twenty billion, forty-four million, one hundred thirty-four thousand, four hundred one".