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21203233113201 = 310368618877389
BaseRepresentation
bin1001101001000110000110…
…01011011000010001110001
32210002000020202211210011120
410310203003023120101301
510234343210134110301
6113032344131332453
74315611611520636
oct464430313302161
983060222753146
1021203233113201
116835271363a07
1224653b3a51129
13baa5c1662279
14534355d1018d
1526b828810e36
hex1348c32d8471

21203233113201 has 8 divisors (see below), whose sum is σ = 28545452994240. Its totient is φ = 13998250987152.

The previous prime is 21203233113173. The next prime is 21203233113247. The reversal of 21203233113201 is 10231133230212.

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

It is a de Polignac number, because none of the positive numbers 2k-21203233113201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21203233113001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34309438386 + ... + 34309439003.

It is an arithmetic number, because the mean of its divisors is an integer number (3568181624280).

Almost surely, 221203233113201 is an apocalyptic number.

It is an amenable number.

21203233113201 is a deficient number, since it is larger than the sum of its proper divisors (7342219881039).

21203233113201 is a wasteful number, since it uses less digits than its factorization.

21203233113201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68618877495.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 21203233113201 its reverse (10231133230212), we get a palindrome (31434366343413).

The spelling of 21203233113201 in words is "twenty-one trillion, two hundred three billion, two hundred thirty-three million, one hundred thirteen thousand, two hundred one".

Divisors: 1 3 103 309 68618877389 205856632167 7067744371067 21203233113201