20012312003321 has 8 divisors (see below), whose sum is σ = 21832294461600. Its totient is φ = 18192443106240.

The previous prime is 20012312003297. The next prime is 20012312003323. The reversal of 20012312003321 is 12330021321002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20012312003321 - 2³⁴ = 19995132134137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20012312003293 and 20012312003302.

It is not an unprimeable number, because it can be changed into a prime (20012312003323) 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, 28021616 + ... + 28726913.

It is an arithmetic number, because the mean of its divisors is an integer number (2729036807700).

Almost surely, 2^{20012312003321} is an apocalyptic number.

It is an amenable number.

20012312003321 is a deficient number, since it is larger than the sum of its proper divisors (1819982458279).

20012312003321 is a wasteful number, since it uses less digits than its factorization.

20012312003321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56780599.

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

Adding to 20012312003321 its reverse (12330021321002), we get a palindrome (32342333324323).

The spelling of 20012312003321 in words is "twenty trillion, twelve billion, three hundred twelve million, three thousand, three hundred twenty-one".