201131047267601 has 4 divisors (see below), whose sum is σ = 219415687928304. Its totient is φ = 182846406606900.

The previous prime is 201131047267597. The next prime is 201131047267637. The reversal of 201131047267601 is 106762740131102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201131047267601 - 2² = 201131047267597 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201131047267001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9142320330335 + ... + 9142320330356.

It is an arithmetic number, because the mean of its divisors is an integer number (54853921982076).

Almost surely, 2^{201131047267601} is an apocalyptic number.

It is an amenable number.

201131047267601 is a deficient number, since it is larger than the sum of its proper divisors (18284640660703).

201131047267601 is a wasteful number, since it uses less digits than its factorization.

201131047267601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18284640660702.

The product of its (nonzero) digits is 84672, while the sum is 41.

Adding to 201131047267601 its reverse (106762740131102), we get a palindrome (307893787398703).

The spelling of 201131047267601 in words is "two hundred one trillion, one hundred thirty-one billion, forty-seven million, two hundred sixty-seven thousand, six hundred one".