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12130223219 = 19638432801
BaseRepresentation
bin10110100110000010…
…01000010001110011
31011022101011012000122
423103001020101303
5144320314120334
65323400440455
7606412124162
oct132301102163
934271135018
1012130223219
115165216274
12242647912b
1311b412aa9a
148310393d9
154aede532e
hex2d3048473

12130223219 has 4 divisors (see below), whose sum is σ = 12768656040. Its totient is φ = 11491790400.

The previous prime is 12130223173. The next prime is 12130223297. The reversal of 12130223219 is 91232203121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12130223219 - 224 = 12113446003 is a prime.

It is a super-2 number, since 2×121302232192 (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 (12130223519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319216382 + ... + 319216419.

It is an arithmetic number, because the mean of its divisors is an integer number (3192164010).

Almost surely, 212130223219 is an apocalyptic number.

12130223219 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12130223219 is a deficient number, since it is larger than the sum of its proper divisors (638432821).

12130223219 is an equidigital number, since it uses as much as digits as its factorization.

12130223219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638432820.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 12130223219 in words is "twelve billion, one hundred thirty million, two hundred twenty-three thousand, two hundred nineteen".

Divisors: 1 19 638432801 12130223219