311322030312 has 16 divisors (see below), whose sum is σ = 778305075840. Its totient is φ = 103774010096.

The previous prime is 311322030307. The next prime is 311322030317. The reversal of 311322030312 is 213030223113.

It is an interprime number because it is at equal distance from previous prime (311322030307) and next prime (311322030317).

It is not an unprimeable number, because it can be changed into a prime (311322030317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6485875608 + ... + 6485875655.

It is an arithmetic number, because the mean of its divisors is an integer number (48644067240).

Almost surely, 2^311322030312 is an apocalyptic number.

It is an amenable number.

311322030312 is an abundant number, since it is smaller than the sum of its proper divisors (466983045528).

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

311322030312 is a wasteful number, since it uses less digits than its factorization.

311322030312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12971751272 (or 12971751268 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 311322030312 its reverse (213030223113), we get a palindrome (524352253425).

The spelling of 311322030312 in words is "three hundred eleven billion, three hundred twenty-two million, thirty thousand, three hundred twelve".