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12132233211 = 37577725391
BaseRepresentation
bin10110100110010001…
…10010111111111011
31011022111221022012210
423103020302333323
5144321322430321
65323511510203
7606435165210
oct132310627773
934274838183
1012132233211
11516636941a
122427088363
1311b4682927
148313ddb07
154b0190b76
hex2d3232ffb

12132233211 has 8 divisors (see below), whose sum is σ = 18487212544. Its totient is φ = 6932704680.

The previous prime is 12132233173. The next prime is 12132233213. The reversal of 12132233211 is 11233223121.

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-12132233211 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 577725391 = 12132233211 / (1 + 2 + 1 + 3 + 2 + 2 + 3 + 3 + 2 + 1 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12132233213) 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, 288862675 + ... + 288862716.

It is an arithmetic number, because the mean of its divisors is an integer number (2310901568).

Almost surely, 212132233211 is an apocalyptic number.

12132233211 is a deficient number, since it is larger than the sum of its proper divisors (6354979333).

12132233211 is an equidigital number, since it uses as much as digits as its factorization.

12132233211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577725401.

The product of its digits is 432, while the sum is 21.

Adding to 12132233211 its reverse (11233223121), we get a palindrome (23365456332).

The spelling of 12132233211 in words is "twelve billion, one hundred thirty-two million, two hundred thirty-three thousand, two hundred eleven".

Divisors: 1 3 7 21 577725391 1733176173 4044077737 12132233211