311200022012 has 12 divisors (see below), whose sum is σ = 594109133016. Its totient is φ = 141454555440.

The previous prime is 311200021987. The next prime is 311200022027. The reversal of 311200022012 is 210220002113.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3536363843 + ... + 3536363930.

It is an arithmetic number, because the mean of its divisors is an integer number (49509094418).

Almost surely, 2^311200022012 is an apocalyptic number.

It is an amenable number.

311200022012 is a deficient number, since it is larger than the sum of its proper divisors (282909111004).

311200022012 is a wasteful number, since it uses less digits than its factorization.

311200022012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7072727788 (or 7072727786 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 311200022012 its reverse (210220002113), we get a palindrome (521420024125).

The spelling of 311200022012 in words is "three hundred eleven billion, two hundred million, twenty-two thousand, twelve".