311211231230 has 16 divisors (see below), whose sum is σ = 560359874880. Its totient is φ = 124444568352.

The previous prime is 311211231211. The next prime is 311211231239. The reversal of 311211231230 is 32132112113.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311211231239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4957769 + ... + 5020148.

It is an arithmetic number, because the mean of its divisors is an integer number (35022492180).

Almost surely, 2^311211231230 is an apocalyptic number.

311211231230 is a deficient number, since it is larger than the sum of its proper divisors (249148643650).

311211231230 is a wasteful number, since it uses less digits than its factorization.

311211231230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9981043.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 311211231230 its reverse (32132112113), we get a palindrome (343343343343).

The spelling of 311211231230 in words is "three hundred eleven billion, two hundred eleven million, two hundred thirty-one thousand, two hundred thirty".