20207850321 has 8 divisors (see below), whose sum is σ = 26945158240. Its totient is φ = 13471221312.

The previous prime is 20207850319. The next prime is 20207850331. The reversal of 20207850321 is 12305870202.

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

It is not a de Polignac number, because 20207850321 - 2¹ = 20207850319 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20207850331) 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, 95656 + ... + 222633.

It is an arithmetic number, because the mean of its divisors is an integer number (3368144780).

Almost surely, 2^20207850321 is an apocalyptic number.

It is an amenable number.

20207850321 is a deficient number, since it is larger than the sum of its proper divisors (6737307919).

20207850321 is a wasteful number, since it uses less digits than its factorization.

20207850321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339455.

The product of its (nonzero) digits is 6720, while the sum is 30.

The spelling of 20207850321 in words is "twenty billion, two hundred seven million, eight hundred fifty thousand, three hundred twenty-one".