312123203012 has 12 divisors (see below), whose sum is σ = 569964110016. Its totient is φ = 149276314440.

The previous prime is 312123202969. The next prime is 312123203027. The reversal of 312123203012 is 210302321213.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1696321664 + ... + 1696321847.

It is an arithmetic number, because the mean of its divisors is an integer number (47497009168).

Almost surely, 2^312123203012 is an apocalyptic number.

It is an amenable number.

312123203012 is a deficient number, since it is larger than the sum of its proper divisors (257840907004).

312123203012 is a wasteful number, since it uses less digits than its factorization.

312123203012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3392643538 (or 3392643536 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 312123203012 its reverse (210302321213), we get a palindrome (522425524225).

The spelling of 312123203012 in words is "three hundred twelve billion, one hundred twenty-three million, two hundred three thousand, twelve".