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20303110201 = 111845737291
BaseRepresentation
bin10010111010001010…
…001110000000111001
31221101221212212021111
4102322022032000321
5313040044011301
613154354040321
71316062406053
oct227212160071
957357785244
1020303110201
118679638220
123b275790a1
131bb742429a
14da86688d3
157dc691551
hex4ba28e039

20303110201 has 4 divisors (see below), whose sum is σ = 22148847504. Its totient is φ = 18457372900.

The previous prime is 20303110187. The next prime is 20303110207. The reversal of 20303110201 is 10201130302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20303110201 - 215 = 20303077433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20303110207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 922868635 + ... + 922868656.

It is an arithmetic number, because the mean of its divisors is an integer number (5537211876).

Almost surely, 220303110201 is an apocalyptic number.

It is an amenable number.

20303110201 is a deficient number, since it is larger than the sum of its proper divisors (1845737303).

20303110201 is a wasteful number, since it uses less digits than its factorization.

20303110201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1845737302.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 20303110201 its reverse (10201130302), we get a palindrome (30504240503).

The spelling of 20303110201 in words is "twenty billion, three hundred three million, one hundred ten thousand, two hundred one".

Divisors: 1 11 1845737291 20303110201