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232111023131 = 13239421917707
BaseRepresentation
bin1101100000101011100…
…1010010010000011011
3211012010012211200012102
43120022321102100123
512300330410220011
6254344052434015
722524633100151
oct3301271222033
9735105750172
10232111023131
118a48a692149
1238b9961890b
1318b70b61590
14b33ca453d1
15608759173b
hex360ae5241b

232111023131 has 16 divisors (see below), whose sum is σ = 251085273600. Its totient is φ = 213297241248.

The previous prime is 232111023073. The next prime is 232111023139. The reversal of 232111023131 is 131320111232.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-232111023131 is a prime.

It is a super-2 number, since 2×2321110231312 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (232111023139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13099580 + ... + 13117286.

It is an arithmetic number, because the mean of its divisors is an integer number (15692829600).

Almost surely, 2232111023131 is an apocalyptic number.

232111023131 is a deficient number, since it is larger than the sum of its proper divisors (18974250469).

232111023131 is a wasteful number, since it uses less digits than its factorization.

232111023131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22178.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 232111023131 its reverse (131320111232), we get a palindrome (363431134363).

The spelling of 232111023131 in words is "two hundred thirty-two billion, one hundred eleven million, twenty-three thousand, one hundred thirty-one".

Divisors: 1 13 239 3107 4219 17707 54847 230191 1008341 4231973 13108433 55015649 74705833 971175829 17854694087 232111023131