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12011031322231 = 73421390818707
BaseRepresentation
bin1010111011001000100101…
…0000010101111001110111
31120112020120102110100001111
42232302021100111321313
53033242043004302411
641313442553335451
72346524360501554
oct256621120257167
946466512410044
1012011031322231
113910939066537
12141b99a107587
13691834c62ca6
142d74a0ac3a2b
1515c67b5ea721
hexaec89415e77

12011031322231 has 8 divisors (see below), whose sum is σ = 12204486613424. Its totient is φ = 11818357669440.

The previous prime is 12011031322223. The next prime is 12011031322237. The reversal of 12011031322231 is 13222313011021.

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 12011031322231 - 23 = 12011031322223 is a prime.

It is a super-2 number, since 2×120110313222312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011031322237) 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, 195378621 + ... + 195440086.

It is an arithmetic number, because the mean of its divisors is an integer number (1525560826678).

Almost surely, 212011031322231 is an apocalyptic number.

12011031322231 is a deficient number, since it is larger than the sum of its proper divisors (193455291193).

12011031322231 is an equidigital number, since it uses as much as digits as its factorization.

12011031322231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390819201.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 12011031322231 its reverse (13222313011021), we get a palindrome (25233344333252).

The spelling of 12011031322231 in words is "twelve trillion, eleven billion, thirty-one million, three hundred twenty-two thousand, two hundred thirty-one".

Divisors: 1 73 421 30733 390818707 28529765611 164534675647 12011031322231