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20121320222323 = 347178481324889
BaseRepresentation
bin1001001001100110111000…
…01001001110111001110011
32122020120122101212100201021
410210303130021032321303
510114131430434103243
6110443335031320311
74144501033630645
oct444633411167163
978216571770637
1020121320222323
116458449781791
12230b791520097
13b2c580b66738
144d7c3ca6a895
1524d605bc36ed
hex124cdc24ee73

20121320222323 has 8 divisors (see below), whose sum is σ = 20179481909040. Its totient is φ = 20063159543040.

The previous prime is 20121320222309. The next prime is 20121320222407. The reversal of 20121320222323 is 32322202312102.

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 20121320222323 - 217 = 20121320091251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20121320222303) 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 7 ways as a sum of consecutive naturals, for example, 61770463 + ... + 62095351.

It is an arithmetic number, because the mean of its divisors is an integer number (2522435238630).

Almost surely, 220121320222323 is an apocalyptic number.

20121320222323 is a deficient number, since it is larger than the sum of its proper divisors (58161686717).

20121320222323 is a wasteful number, since it uses less digits than its factorization.

20121320222323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503717.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 20121320222323 its reverse (32322202312102), we get a palindrome (52443522534425).

The spelling of 20121320222323 in words is "twenty trillion, one hundred twenty-one billion, three hundred twenty million, two hundred twenty-two thousand, three hundred twenty-three".

Divisors: 1 347 178481 324889 61932907 112736483 57986513609 20121320222323