201132001601 has 2 divisors, whose sum is σ = 201132001602. Its totient is φ = 201132001600.

The previous prime is 201132001579. The next prime is 201132001607. The reversal of 201132001601 is 106100231102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 179247237376 + 21884764225 = 423376^2 + 147935^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201132001601 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201132001601.

It is not a weakly prime, because it can be changed into another prime (201132001607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100566000800 + 100566000801.

It is an arithmetic number, because the mean of its divisors is an integer number (100566000801).

Almost surely, 2^201132001601 is an apocalyptic number.

It is an amenable number.

201132001601 is a deficient number, since it is larger than the sum of its proper divisors (1).

201132001601 is an equidigital number, since it uses as much as digits as its factorization.

201132001601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 201132001601 its reverse (106100231102), we get a palindrome (307232232703).

The spelling of 201132001601 in words is "two hundred one billion, one hundred thirty-two million, one thousand, six hundred one".