201001320020195 has 16 divisors (see below), whose sum is σ = 251734953157632. Its totient is φ = 153781384579680.

The previous prime is 201001320020177. The next prime is 201001320020203. The reversal of 201001320020195 is 591020023100102.

It is a happy number.

It is not a de Polignac number, because 201001320020195 - 2²⁶ = 201001252911331 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160288487 + ... + 161537616.

It is an arithmetic number, because the mean of its divisors is an integer number (15733434572352).

Almost surely, 2^{201001320020195} is an apocalyptic number.

201001320020195 is a deficient number, since it is larger than the sum of its proper divisors (50733633137437).

201001320020195 is a wasteful number, since it uses less digits than its factorization.

201001320020195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321831562.

The product of its (nonzero) digits is 1080, while the sum is 26.

Adding to 201001320020195 its reverse (591020023100102), we get a palindrome (792021343120297).

The spelling of 201001320020195 in words is "two hundred one trillion, one billion, three hundred twenty million, twenty thousand, one hundred ninety-five".