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12003022131 = 37953939391
BaseRepresentation
bin10110010110110111…
…11001010100110011
31010222111210200221020
423023123321110303
5144040233202011
65303014230523
7603306001422
oct131333712463
933874720836
1012003022131
1150aa436201
1223ab955443
131193982279
1481c1a72b9
154a3b6b006
hex2cb6f9533

12003022131 has 16 divisors (see below), whose sum is σ = 16211343360. Its totient is φ = 7898417280.

The previous prime is 12003022099. The next prime is 12003022169. The reversal of 12003022131 is 13122030021.

It is not a de Polignac number, because 12003022131 - 25 = 12003022099 is a prime.

It is a super-2 number, since 2×120030221312 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12003022131.

It is not an unprimeable number, because it can be changed into a prime (12003022181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1273446 + ... + 1282836.

It is an arithmetic number, because the mean of its divisors is an integer number (1013208960).

Almost surely, 212003022131 is an apocalyptic number.

12003022131 is a deficient number, since it is larger than the sum of its proper divisors (4208321229).

12003022131 is an equidigital number, since it uses as much as digits as its factorization.

12003022131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14866.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 12003022131 its reverse (13122030021), we get a palindrome (25125052152).

The spelling of 12003022131 in words is "twelve billion, three million, twenty-two thousand, one hundred thirty-one".

Divisors: 1 3 79 237 5393 9391 16179 28173 426047 741889 1278141 2225667 50645663 151936989 4001007377 12003022131