201330181049 has 2 divisors, whose sum is σ = 201330181050. Its totient is φ = 201330181048.

The previous prime is 201330181043. The next prime is 201330181067. The reversal of 201330181049 is 940181033102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 153090647824 + 48239533225 = 391268^2 + 219635^2 .

It is a cyclic number.

It is not a de Polignac number, because 201330181049 - 2¹² = 201330176953 is a prime.

It is not a weakly prime, because it can be changed into another prime (201330181043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100665090524 + 100665090525.

It is an arithmetic number, because the mean of its divisors is an integer number (100665090525).

Almost surely, 2^201330181049 is an apocalyptic number.

It is an amenable number.

201330181049 is a deficient number, since it is larger than the sum of its proper divisors (1).

201330181049 is an equidigital number, since it uses as much as digits as its factorization.

201330181049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 32.

The spelling of 201330181049 in words is "two hundred one billion, three hundred thirty million, one hundred eighty-one thousand, forty-nine".