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2012220323131 is a prime number
BaseRepresentation
bin11101010010000001101…
…011010111010100111011
321010100220002112120211111
4131102001223113110323
5230432011400320011
64140222400541151
7265243460352214
oct35220153272473
97110802476744
102012220323131
11706417a06497
12285b946217b7
131179a024a6c5
146d56b86040b
1537520c6e121
hex1d481ad753b

2012220323131 has 2 divisors, whose sum is σ = 2012220323132. Its totient is φ = 2012220323130.

The previous prime is 2012220323119. The next prime is 2012220323203. The reversal of 2012220323131 is 1313230222102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2012220323131 - 225 = 2012186768699 is a prime.

It is a super-2 number, since 2×20122203231312 (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2012220323111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006110161565 + 1006110161566.

It is an arithmetic number, because the mean of its divisors is an integer number (1006110161566).

Almost surely, 22012220323131 is an apocalyptic number.

2012220323131 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012220323131 is an equidigital number, since it uses as much as digits as its factorization.

2012220323131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 2012220323131 its reverse (1313230222102), we get a palindrome (3325450545233).

The spelling of 2012220323131 in words is "two trillion, twelve billion, two hundred twenty million, three hundred twenty-three thousand, one hundred thirty-one".