311213343323212 has 24 divisors (see below), whose sum is σ = 594140424694992. Its totient is φ = 141459215323200.

The previous prime is 311213343323143. The next prime is 311213343323251. The reversal of 311213343323212 is 212323343312113.

It is a super-2 number, since 2×311213343323212² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30363739 + ... + 39298642.

It is an arithmetic number, because the mean of its divisors is an integer number (24755851028958).

Almost surely, 2^{311213343323212} is an apocalyptic number.

It is an amenable number.

311213343323212 is a deficient number, since it is larger than the sum of its proper divisors (282927081371780).

311213343323212 is a wasteful number, since it uses less digits than its factorization.

311213343323212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69763929 (or 69763927 counting only the distinct ones).

The product of its digits is 46656, while the sum is 34.

Adding to 311213343323212 its reverse (212323343312113), we get a palindrome (523536686635325).

The spelling of 311213343323212 in words is "three hundred eleven trillion, two hundred thirteen billion, three hundred forty-three million, three hundred twenty-three thousand, two hundred twelve".