312203212102 has 4 divisors (see below), whose sum is σ = 468304818156. Its totient is φ = 156101606050.

The previous prime is 312203212063. The next prime is 312203212151. The reversal of 312203212102 is 201212302213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 201212302213 = 13 ⋅15477869401.

It is a self number, because there is not a number n which added to its sum of digits gives 312203212102.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 78050803024 + ... + 78050803027.

It is an arithmetic number, because the mean of its divisors is an integer number (117076204539).

Almost surely, 2^312203212102 is an apocalyptic number.

312203212102 is a deficient number, since it is larger than the sum of its proper divisors (156101606054).

312203212102 is a wasteful number, since it uses less digits than its factorization.

312203212102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156101606053.

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

Adding to 312203212102 its reverse (201212302213), we get a palindrome (513415514315).

The spelling of 312203212102 in words is "three hundred twelve billion, two hundred three million, two hundred twelve thousand, one hundred two".