201331740889 has 2 divisors, whose sum is σ = 201331740890. Its totient is φ = 201331740888.

The previous prime is 201331740851. The next prime is 201331740893. The reversal of 201331740889 is 988047133102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 186351939225 + 14979801664 = 431685^2 + 122392^2 .

It is a cyclic number.

It is not a de Polignac number, because 201331740889 - 2⁷ = 201331740761 is a prime.

It is not a weakly prime, because it can be changed into another prime (201331740839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100665870444 + 100665870445.

It is an arithmetic number, because the mean of its divisors is an integer number (100665870445).

Almost surely, 2^201331740889 is an apocalyptic number.

It is an amenable number.

201331740889 is a deficient number, since it is larger than the sum of its proper divisors (1).

201331740889 is an equidigital number, since it uses as much as digits as its factorization.

201331740889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 46.

The spelling of 201331740889 in words is "two hundred one billion, three hundred thirty-one million, seven hundred forty thousand, eight hundred eighty-nine".