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12103213033 = 26985752501
BaseRepresentation
bin10110100010110100…
…00101111111101001
31011020111022221000101
423101122011333221
5144241410304113
65320553505401
7605633420242
oct132132057751
934214287011
1012103213033
115150a480aa
122419412261
1311ab661922
1482b607cc9
154ac85c2dd
hex2d1685fe9

12103213033 has 8 divisors (see below), whose sum is σ = 12162613320. Its totient is φ = 12043920000.

The previous prime is 12103213007. The next prime is 12103213039. The reversal of 12103213033 is 33031230121.

It can be written as a sum of positive squares in 4 ways, for example, as 907033689 + 11196179344 = 30117^2 + 105812^2 .

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-12103213033 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 12103213033.

It is not an unprimeable number, because it can be changed into a prime (12103213039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204283 + ... + 256783.

It is an arithmetic number, because the mean of its divisors is an integer number (1520326665).

Almost surely, 212103213033 is an apocalyptic number.

It is an amenable number.

12103213033 is a deficient number, since it is larger than the sum of its proper divisors (59400287).

12103213033 is an equidigital number, since it uses as much as digits as its factorization.

12103213033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53627.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 12103213033 its reverse (33031230121), we get a palindrome (45134443154).

The spelling of 12103213033 in words is "twelve billion, one hundred three million, two hundred thirteen thousand, thirty-three".

Divisors: 1 269 857 52501 230533 14122769 44993357 12103213033