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20023312201 is a prime number
BaseRepresentation
bin10010101001011110…
…110111111101001001
31220200110101122120121
4102221132313331021
5312001431442301
613110521023241
71306124226334
oct225136677511
956613348517
1020023312201
118545701902
123a69924b21
131b7147a839
14d7d43361b
157c2d233a1
hex4a97b7f49

20023312201 has 2 divisors, whose sum is σ = 20023312202. Its totient is φ = 20023312200.

The previous prime is 20023312187. The next prime is 20023312217. The reversal of 20023312201 is 10221332002.

It is an a-pointer prime, because the next prime (20023312217) can be obtained adding 20023312201 to its sum of digits (16).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19537330176 + 485982025 = 139776^2 + 22045^2 .

It is a cyclic number.

It is not a de Polignac number, because 20023312201 - 215 = 20023279433 is a prime.

It is not a weakly prime, because it can be changed into another prime (20023312261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10011656100 + 10011656101.

It is an arithmetic number, because the mean of its divisors is an integer number (10011656101).

Almost surely, 220023312201 is an apocalyptic number.

It is an amenable number.

20023312201 is a deficient number, since it is larger than the sum of its proper divisors (1).

20023312201 is an equidigital number, since it uses as much as digits as its factorization.

20023312201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20023312201 its reverse (10221332002), we get a palindrome (30244644203).

The spelling of 20023312201 in words is "twenty billion, twenty-three million, three hundred twelve thousand, two hundred one".