20443502201 has 8 divisors (see below), whose sum is σ = 21647462400. Its totient is φ = 19239697728.

The previous prime is 20443502197. The next prime is 20443502207. The reversal of 20443502201 is 10220534402.

It is a happy number.

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 20443502201 - 2² = 20443502197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20443502207) 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, 332900 + ... + 389498.

It is an arithmetic number, because the mean of its divisors is an integer number (2705932800).

Almost surely, 2^20443502201 is an apocalyptic number.

It is an amenable number.

20443502201 is a deficient number, since it is larger than the sum of its proper divisors (1203960199).

20443502201 is a wasteful number, since it uses less digits than its factorization.

20443502201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77863.

The product of its (nonzero) digits is 1920, while the sum is 23.

The spelling of 20443502201 in words is "twenty billion, four hundred forty-three million, five hundred two thousand, two hundred one".