311211042 has 16 divisors (see below), whose sum is σ = 622919712. Its totient is φ = 103654080.

The previous prime is 311211041. The next prime is 311211097. The reversal of 311211042 is 240112113.

311211042 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 (311211041) 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, 12343 + ... + 27834.

It is an arithmetic number, because the mean of its divisors is an integer number (38932482).

Almost surely, 2^311211042 is an apocalyptic number.

311211042 is an abundant number, since it is smaller than the sum of its proper divisors (311708670).

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

311211042 is a wasteful number, since it uses less digits than its factorization.

311211042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41473.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 311211042 is about 17641.1746207558. The cubic root of 311211042 is about 677.6701130088.

Adding to 311211042 its reverse (240112113), we get a palindrome (551323155).

The spelling of 311211042 in words is "three hundred eleven million, two hundred eleven thousand, forty-two".