201311966 has 8 divisors (see below), whose sum is σ = 303058920. Its totient is φ = 100292328.

The previous prime is 201311947. The next prime is 201311983. The reversal of 201311966 is 669113102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181136 + ... + 182243.

It is an arithmetic number, because the mean of its divisors is an integer number (37882365).

Almost surely, 2^201311966 is an apocalyptic number.

201311966 is a deficient number, since it is larger than the sum of its proper divisors (101746954).

201311966 is a wasteful number, since it uses less digits than its factorization.

201311966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363658.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 201311966 is about 14188.4448055451. Note that the first 3 decimals coincide. The cubic root of 201311966 is about 586.0794989738.

The spelling of 201311966 in words is "two hundred one million, three hundred eleven thousand, nine hundred sixty-six".