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12133100321 = 127142766949
BaseRepresentation
bin10110100110011000…
…00110101100100001
31011022120120100122222
423103030012230201
5144322033202241
65323542240425
7606445436216
oct132314065441
934276510588
1012133100321
115166900941
122427426115
1311b48c7504
14831587b0d
154b02b2a4b
hex2d3306b21

12133100321 has 8 divisors (see below), whose sum is σ = 12237388800. Its totient is φ = 12028948848.

The previous prime is 12133100281. The next prime is 12133100341. The reversal of 12133100321 is 12300133121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12133100321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12133100321.

It is not an unprimeable number, because it can be changed into a prime (12133100341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147755 + ... + 214703.

It is an arithmetic number, because the mean of its divisors is an integer number (1529673600).

Almost surely, 212133100321 is an apocalyptic number.

It is an amenable number.

12133100321 is a deficient number, since it is larger than the sum of its proper divisors (104288479).

12133100321 is a wasteful number, since it uses less digits than its factorization.

12133100321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68503.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 12133100321 its reverse (12300133121), we get a palindrome (24433233442).

The spelling of 12133100321 in words is "twelve billion, one hundred thirty-three million, one hundred thousand, three hundred twenty-one".

Divisors: 1 127 1427 66949 181229 8502523 95536223 12133100321