311303002312 has 32 divisors (see below), whose sum is σ = 609727046400. Its totient is φ = 148723700224.

The previous prime is 311303002303. The next prime is 311303002313. The reversal of 311303002312 is 213200303113.

It is a self number, because there is not a number n which added to its sum of digits gives 311303002312.

It is not an unprimeable number, because it can be changed into a prime (311303002313) 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, 739648 + ... + 1081519.

It is an arithmetic number, because the mean of its divisors is an integer number (19053970200).

Almost surely, 2^311303002312 is an apocalyptic number.

It is an amenable number.

311303002312 is a deficient number, since it is larger than the sum of its proper divisors (298424044088).

311303002312 is a wasteful number, since it uses less digits than its factorization.

311303002312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1822125 (or 1822121 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 311303002312 its reverse (213200303113), we get a palindrome (524503305425).

The spelling of 311303002312 in words is "three hundred eleven billion, three hundred three million, two thousand, three hundred twelve".