312203021331322 has 16 divisors (see below), whose sum is σ = 528494142693600. Its totient is φ = 137016999957040.

The previous prime is 312203021331287. The next prime is 312203021331343. The reversal of 312203021331322 is 223133120302213.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244673213572 + ... + 244673214847.

It is an arithmetic number, because the mean of its divisors is an integer number (33030883918350).

Almost surely, 2^{312203021331322} is an apocalyptic number.

312203021331322 is a deficient number, since it is larger than the sum of its proper divisors (216291121362278).

312203021331322 is a wasteful number, since it uses less digits than its factorization.

312203021331322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489346428461.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 312203021331322 its reverse (223133120302213), we get a palindrome (535336141633535).

The spelling of 312203021331322 in words is "three hundred twelve trillion, two hundred three billion, twenty-one million, three hundred thirty-one thousand, three hundred twenty-two".