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20201213200213 = 42529147499743
BaseRepresentation
bin1001001011111011101100…
…01000110000011101010101
32122112012212021121010222101
410211331312020300131111
510121434041034401323
6110544150443202101
74153326616012513
oct445756610603525
978465767533871
1020201213200213
116489317230541
122323169516331
13b36c73a69756
144dba5b5074b3
1525072eaa1dad
hex125f76230755

20201213200213 has 4 divisors (see below), whose sum is σ = 20201261125248. Its totient is φ = 20201165275180.

The previous prime is 20201213200187. The next prime is 20201213200237. The reversal of 20201213200213 is 31200231210202.

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 20201213200213 - 221 = 20201211103061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201213200613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23324581 + ... + 24175162.

It is an arithmetic number, because the mean of its divisors is an integer number (5050315281312).

Almost surely, 220201213200213 is an apocalyptic number.

It is an amenable number.

20201213200213 is a deficient number, since it is larger than the sum of its proper divisors (47925035).

20201213200213 is an equidigital number, since it uses as much as digits as its factorization.

20201213200213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47925034.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20201213200213 its reverse (31200231210202), we get a palindrome (51401444410415).

The spelling of 20201213200213 in words is "twenty trillion, two hundred one billion, two hundred thirteen million, two hundred thousand, two hundred thirteen".

Divisors: 1 425291 47499743 20201213200213