20846721203 has 8 divisors (see below), whose sum is σ = 25990717440. Its totient is φ = 16244198280.

The previous prime is 20846721191. The next prime is 20846721211. The reversal of 20846721203 is 30212764802.

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 20846721203 - 2¹⁸ = 20846459059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20846721803) 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, 135368243 + ... + 135368396.

It is an arithmetic number, because the mean of its divisors is an integer number (3248839680).

Almost surely, 2^20846721203 is an apocalyptic number.

20846721203 is a deficient number, since it is larger than the sum of its proper divisors (5143996237).

20846721203 is a wasteful number, since it uses less digits than its factorization.

20846721203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270736657.

The product of its (nonzero) digits is 32256, while the sum is 35.

The spelling of 20846721203 in words is "twenty billion, eight hundred forty-six million, seven hundred twenty-one thousand, two hundred three".