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212123232123133 = 4719091323640403
BaseRepresentation
bin110000001110110011001001…
…111001100011100011111101
31000211001210010202200122021111
4300032303021321203203331
5210300411334410420013
62031052022331402021
762452253303153122
oct6016631171434375
91024053122618244
10212123232123133
1161652a59546211
121b95aaa12b3311
13914919a670b06
143a54b67cd6749
15197cc2aaab73d
hexc0ecc9e638fd

212123232123133 has 8 divisors (see below), whose sum is σ = 216637636284288. Its totient is φ = 207608875624704.

The previous prime is 212123232123113. The next prime is 212123232123203. The reversal of 212123232123133 is 331321232321212.

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 212123232123133 - 245 = 176938860034301 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212123232123095 and 212123232123104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212123232123113) 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, 2847291 + ... + 20793112.

It is an arithmetic number, because the mean of its divisors is an integer number (27079704535536).

Almost surely, 2212123232123133 is an apocalyptic number.

It is an amenable number.

212123232123133 is a deficient number, since it is larger than the sum of its proper divisors (4514404161155).

212123232123133 is a wasteful number, since it uses less digits than its factorization.

212123232123133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23831363.

The product of its digits is 15552, while the sum is 31.

Adding to 212123232123133 its reverse (331321232321212), we get a palindrome (543444464444345).

The spelling of 212123232123133 in words is "two hundred twelve trillion, one hundred twenty-three billion, two hundred thirty-two million, one hundred twenty-three thousand, one hundred thirty-three".

Divisors: 1 47 190913 8972911 23640403 1111098941 4513260257939 212123232123133