201115254001 has 2 divisors, whose sum is σ = 201115254002. Its totient is φ = 201115254000.

The previous prime is 201115253951. The next prime is 201115254007. The reversal of 201115254001 is 100452511102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 200525735601 + 589518400 = 447801^2 + 24280^2 .

It is a cyclic number.

It is not a de Polignac number, because 201115254001 - 2⁷ = 201115253873 is a prime.

It is not a weakly prime, because it can be changed into another prime (201115254007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100557627000 + 100557627001.

It is an arithmetic number, because the mean of its divisors is an integer number (100557627001).

Almost surely, 2^201115254001 is an apocalyptic number.

It is an amenable number.

201115254001 is a deficient number, since it is larger than the sum of its proper divisors (1).

201115254001 is an equidigital number, since it uses as much as digits as its factorization.

201115254001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 400, while the sum is 22.

Adding to 201115254001 its reverse (100452511102), we get a palindrome (301567765103).

The spelling of 201115254001 in words is "two hundred one billion, one hundred fifteen million, two hundred fifty-four thousand, one".