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2213132231 is a prime number
BaseRepresentation
bin1000001111101001…
…1011011111000111
312201020101202200102
42003322123133013
514013030212411
61003335034315
7105562212362
oct20372333707
95636352612
102213132231
11a3628a002
1251920b99b
1329367bacb
1416dcd90d9
15ce462d3b
hex83e9b7c7

2213132231 has 2 divisors, whose sum is σ = 2213132232. Its totient is φ = 2213132230.

The previous prime is 2213132227. The next prime is 2213132237. The reversal of 2213132231 is 1322313122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2213132231 - 22 = 2213132227 is a prime.

It is a super-2 number, since 2×22131322312 = 9795908543782074722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2213132237) 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 as a sum of consecutive naturals, namely, 1106566115 + 1106566116.

It is an arithmetic number, because the mean of its divisors is an integer number (1106566116).

Almost surely, 22213132231 is an apocalyptic number.

2213132231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2213132231 is an equidigital number, since it uses as much as digits as its factorization.

2213132231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 20.

The square root of 2213132231 is about 47043.9393652360. The cubic root of 2213132231 is about 1303.1741431557.

Adding to 2213132231 its reverse (1322313122), we get a palindrome (3535445353).

The spelling of 2213132231 in words is "two billion, two hundred thirteen million, one hundred thirty-two thousand, two hundred thirty-one".