311312103202 has 16 divisors (see below), whose sum is σ = 468517900032. Its totient is φ = 155140254000.

The previous prime is 311312103197. The next prime is 311312103211. The reversal of 311312103202 is 202301213113.

It is a self number, because there is not a number n which added to its sum of digits gives 311312103202.

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, 601327 + ... + 992077.

It is an arithmetic number, because the mean of its divisors is an integer number (29282368752).

Almost surely, 2^311312103202 is an apocalyptic number.

311312103202 is a deficient number, since it is larger than the sum of its proper divisors (157205796830).

311312103202 is a wasteful number, since it uses less digits than its factorization.

311312103202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392073.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 311312103202 its reverse (202301213113), we get a palindrome (513613316315).

The spelling of 311312103202 in words is "three hundred eleven billion, three hundred twelve million, one hundred three thousand, two hundred two".