311112201 has 8 divisors (see below), whose sum is σ = 414900864. Its totient is φ = 207365840.

The previous prime is 311112157. The next prime is 311112229. The reversal of 311112201 is 102211113.

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

It is a cyclic number.

It is not a de Polignac number, because 311112201 - 2⁷ = 311112073 is a prime.

It is a super-2 number, since 2×311112201² = 193581603222128802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (311112101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16471 + ... + 29891.

It is an arithmetic number, because the mean of its divisors is an integer number (51862608).

Almost surely, 2^311112201 is an apocalyptic number.

It is an amenable number.

311112201 is a deficient number, since it is larger than the sum of its proper divisors (103788663).

311112201 is a wasteful number, since it uses less digits than its factorization.

311112201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21151.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 311112201 is about 17638.3729691828. The cubic root of 311112201 is about 677.5983624655.

Adding to 311112201 its reverse (102211113), we get a palindrome (413323314).

The spelling of 311112201 in words is "three hundred eleven million, one hundred twelve thousand, two hundred one".