311200242 has 32 divisors (see below), whose sum is σ = 633360384. Its totient is φ = 101917200.

The previous prime is 311200231. The next prime is 311200243. The reversal of 311200242 is 242002113.

311200242 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (311200243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139903 + ... + 142109.

It is an arithmetic number, because the mean of its divisors is an integer number (19792512).

Almost surely, 2^311200242 is an apocalyptic number.

311200242 is an abundant number, since it is smaller than the sum of its proper divisors (322160142).

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

311200242 is a wasteful number, since it uses less digits than its factorization.

311200242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2614.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 311200242 is about 17640.8685160340. The cubic root of 311200242 is about 677.6622738248.

Adding to 311200242 its reverse (242002113), we get a palindrome (553202355).

The spelling of 311200242 in words is "three hundred eleven million, two hundred thousand, two hundred forty-two".