311230201 has 4 divisors (see below), whose sum is σ = 311513472. Its totient is φ = 310946932.

The previous prime is 311230159. The next prime is 311230247. The reversal of 311230201 is 102032113.

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 311230201 - 2¹¹ = 311228153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311231201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139981 + ... + 142186.

It is an arithmetic number, because the mean of its divisors is an integer number (77878368).

Almost surely, 2^311230201 is an apocalyptic number.

It is an amenable number.

311230201 is a deficient number, since it is larger than the sum of its proper divisors (283271).

311230201 is a wasteful number, since it uses less digits than its factorization.

311230201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283270.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 311230201 is about 17641.7176317954. The cubic root of 311230201 is about 677.6840191298.

Adding to 311230201 its reverse (102032113), we get a palindrome (413262314).

The spelling of 311230201 in words is "three hundred eleven million, two hundred thirty thousand, two hundred one".