36561102001 has 2 divisors, whose sum is σ = 36561102002. Its totient is φ = 36561102000.

The previous prime is 36561101939. The next prime is 36561102043. The reversal of 36561102001 is 10020116563.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18984706225 + 17576395776 = 137785^2 + 132576^2 .

It is an emirp because it is prime and its reverse (10020116563) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36561102001 - 2²⁵ = 36527547569 is a prime.

It is not a weakly prime, because it can be changed into another prime (36561102091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18280551000 + 18280551001.

It is an arithmetic number, because the mean of its divisors is an integer number (18280551001).

Almost surely, 2^36561102001 is an apocalyptic number.

It is an amenable number.

36561102001 is a deficient number, since it is larger than the sum of its proper divisors (1).

36561102001 is an equidigital number, since it uses as much as digits as its factorization.

36561102001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 25.

Adding to 36561102001 its reverse (10020116563), we get a palindrome (46581218564).

The spelling of 36561102001 in words is "thirty-six billion, five hundred sixty-one million, one hundred two thousand, one".