20673212803 has 8 divisors (see below), whose sum is σ = 21400844400. Its totient is φ = 19946565408.

The previous prime is 20673212801. The next prime is 20673212837. The reversal of 20673212803 is 30821237602.

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 20673212803 - 2¹ = 20673212801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20673212801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203173 + ... + 287446.

It is an arithmetic number, because the mean of its divisors is an integer number (2675105550).

Almost surely, 2^20673212803 is an apocalyptic number.

20673212803 is a deficient number, since it is larger than the sum of its proper divisors (727631597).

20673212803 is a wasteful number, since it uses less digits than its factorization.

20673212803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492101.

The product of its (nonzero) digits is 24192, while the sum is 34.

The spelling of 20673212803 in words is "twenty billion, six hundred seventy-three million, two hundred twelve thousand, eight hundred three".