321012203100312 has 32 divisors (see below), whose sum is σ = 815686745586480. Its totient is φ = 105249902655360.

The previous prime is 321012203100311. The next prime is 321012203100341. The reversal of 321012203100312 is 213001302210123.

It is a super-2 number, since 2×321012203100312² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321012203100311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109635313803 + ... + 109635316730.

Almost surely, 2^{321012203100312} is an apocalyptic number.

It is an amenable number.

321012203100312 is an abundant number, since it is smaller than the sum of its proper divisors (494674542486168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321012203100312 is a wasteful number, since it uses less digits than its factorization.

321012203100312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219270630603 (or 219270630599 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 321012203100312 its reverse (213001302210123), we get a palindrome (534013505310435).

The spelling of 321012203100312 in words is "three hundred twenty-one trillion, twelve billion, two hundred three million, one hundred thousand, three hundred twelve".