3198020021803 has 8 divisors (see below), whose sum is σ = 3218448241008. Its totient is φ = 3177592545504.

The previous prime is 3198020021767. The next prime is 3198020021837. The reversal of 3198020021803 is 3081200208913.

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 3198020021803 - 2⁹ = 3198020021291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3198020021863) 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, 10354725 + ... + 10659097.

It is an arithmetic number, because the mean of its divisors is an integer number (402306030126).

Almost surely, 2^{3198020021803} is an apocalyptic number.

3198020021803 is a deficient number, since it is larger than the sum of its proper divisors (20428219205).

3198020021803 is a wasteful number, since it uses less digits than its factorization.

3198020021803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371453.

The product of its (nonzero) digits is 20736, while the sum is 37.

The spelling of 3198020021803 in words is "three trillion, one hundred ninety-eight billion, twenty million, twenty-one thousand, eight hundred three".