311002223212 has 12 divisors (see below), whose sum is σ = 544285484176. Its totient is φ = 155492084880.

The previous prime is 311002223153. The next prime is 311002223243. The reversal of 311002223212 is 212322200113.

It is a self number, because there is not a number n which added to its sum of digits gives 311002223212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2178864 + ... + 2317207.

Almost surely, 2^311002223212 is an apocalyptic number.

It is an amenable number.

311002223212 is a deficient number, since it is larger than the sum of its proper divisors (233283260964).

311002223212 is a wasteful number, since it uses less digits than its factorization.

311002223212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4513368 (or 4513366 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 311002223212 its reverse (212322200113), we get a palindrome (523324423325).

The spelling of 311002223212 in words is "three hundred eleven billion, two million, two hundred twenty-three thousand, two hundred twelve".