201868311 has 8 divisors (see below), whose sum is σ = 277840384. Its totient is φ = 130237560.

The previous prime is 201868279. The next prime is 201868321. The reversal of 201868311 is 113868102.

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

It is not a de Polignac number, because 201868311 - 2⁵ = 201868279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201868321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1085221 + ... + 1085406.

It is an arithmetic number, because the mean of its divisors is an integer number (34730048).

Almost surely, 2^201868311 is an apocalyptic number.

201868311 is a deficient number, since it is larger than the sum of its proper divisors (75972073).

201868311 is a wasteful number, since it uses less digits than its factorization.

201868311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2170661.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 201868311 is about 14208.0368453914. The cubic root of 201868311 is about 586.6188980921.

The spelling of 201868311 in words is "two hundred one million, eight hundred sixty-eight thousand, three hundred eleven".