201201871049 has 2 divisors, whose sum is σ = 201201871050. Its totient is φ = 201201871048.

The previous prime is 201201870973. The next prime is 201201871061. The reversal of 201201871049 is 940178102102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 201201588025 + 283024 = 448555^2 + 532^2 .

It is a cyclic number.

It is not a de Polignac number, because 201201871049 - 2¹² = 201201866953 is a prime.

It is not a weakly prime, because it can be changed into another prime (201201871099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100600935524 + 100600935525.

It is an arithmetic number, because the mean of its divisors is an integer number (100600935525).

Almost surely, 2^201201871049 is an apocalyptic number.

It is an amenable number.

201201871049 is a deficient number, since it is larger than the sum of its proper divisors (1).

201201871049 is an equidigital number, since it uses as much as digits as its factorization.

201201871049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 35.

The spelling of 201201871049 in words is "two hundred one billion, two hundred one million, eight hundred seventy-one thousand, forty-nine".