312123002012 has 12 divisors (see below), whose sum is σ = 547641405696. Its totient is φ = 155654028960.

The previous prime is 312123002003. The next prime is 312123002033. The reversal of 312123002012 is 210200321213.

It is a congruent number.

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, 101866289 + ... + 101869352.

It is an arithmetic number, because the mean of its divisors is an integer number (45636783808).

Almost surely, 2^312123002012 is an apocalyptic number.

It is an amenable number.

312123002012 is a deficient number, since it is larger than the sum of its proper divisors (235518403684).

312123002012 is a wasteful number, since it uses less digits than its factorization.

312123002012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203736028 (or 203736026 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 312123002012 its reverse (210200321213), we get a palindrome (522323323225).

The spelling of 312123002012 in words is "three hundred twelve billion, one hundred twenty-three million, two thousand, twelve".