312203101321012 has 48 divisors (see below), whose sum is σ = 599370269137920. Its totient is φ = 141113837717600.

The previous prime is 312203101321009. The next prime is 312203101321049. The reversal of 312203101321012 is 210123101302213.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 297275253 + ... + 298323619.

It is an arithmetic number, because the mean of its divisors is an integer number (12486880607040).

Almost surely, 2^{312203101321012} is an apocalyptic number.

It is an amenable number.

312203101321012 is a deficient number, since it is larger than the sum of its proper divisors (287167167816908).

312203101321012 is a wasteful number, since it uses less digits than its factorization.

312203101321012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086372 (or 1086370 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 312203101321012 its reverse (210123101302213), we get a palindrome (522326202623225).

The spelling of 312203101321012 in words is "three hundred twelve trillion, two hundred three billion, one hundred one million, three hundred twenty-one thousand, twelve".