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12133210331 = 118313289387
BaseRepresentation
bin10110100110011001…
…00001100011011011
31011022120202221120102
423103030201203123
5144322100212311
65323544450015
7606446405024
oct132314414333
934276687512
1012133210331
115166976560
12242747990b
1311b49355c8
148315b5c4b
154b02d543b
hex2d33218db

12133210331 has 8 divisors (see below), whose sum is σ = 13395703104. Its totient is φ = 10897296520.

The previous prime is 12133210321. The next prime is 12133210333. The reversal of 12133210331 is 13301233121.

12133210331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-12133210331 is a prime.

It is a super-2 number, since 2×121332103312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12133210333) 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 7 ways as a sum of consecutive naturals, for example, 6643781 + ... + 6645606.

It is an arithmetic number, because the mean of its divisors is an integer number (1674462888).

Almost surely, 212133210331 is an apocalyptic number.

12133210331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12133210331 is a deficient number, since it is larger than the sum of its proper divisors (1262492773).

12133210331 is a wasteful number, since it uses less digits than its factorization.

12133210331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13289481.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 12133210331 its reverse (13301233121), we get a palindrome (25434443452).

The spelling of 12133210331 in words is "twelve billion, one hundred thirty-three million, two hundred ten thousand, three hundred thirty-one".

Divisors: 1 11 83 913 13289387 146183257 1103019121 12133210331