311121230 has 32 divisors (see below), whose sum is σ = 667851264. Its totient is φ = 102031776.

The previous prime is 311121227. The next prime is 311121259. The reversal of 311121230 is 32121113.

311121230 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95012 + ... + 98231.

It is an arithmetic number, because the mean of its divisors is an integer number (20870352).

Almost surely, 2^311121230 is an apocalyptic number.

311121230 is an abundant number, since it is smaller than the sum of its proper divisors (356730034).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

311121230 is a wasteful number, since it uses less digits than its factorization.

311121230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193280.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 311121230 is about 17638.6289149696. The cubic root of 311121230 is about 677.6049174173.

Adding to 311121230 its reverse (32121113), we get a palindrome (343242343).

The spelling of 311121230 in words is "three hundred eleven million, one hundred twenty-one thousand, two hundred thirty".