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12310123211 = 41967743397
BaseRepresentation
bin10110111011011110…
…11001001011001011
31011202220200001102022
423131233121023023
5200202342420321
65353304355055
7614025215021
oct133557311313
934686601368
1012310123211
11524781a851
122476775a8b
131212498299
1484aca8711
154c0acddab
hex2ddbd92cb

12310123211 has 8 divisors (see below), whose sum is σ = 12358014480. Its totient is φ = 12262320928.

The previous prime is 12310123201. The next prime is 12310123277. The reversal of 12310123211 is 11232101321.

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

It is a cyclic number.

It is not a de Polignac number, because 12310123211 - 226 = 12243014347 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 12310123211.

It is not an unprimeable number, because it can be changed into a prime (12310123201) 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, 261965 + ... + 305361.

It is an arithmetic number, because the mean of its divisors is an integer number (1544751810).

Almost surely, 212310123211 is an apocalyptic number.

12310123211 is a deficient number, since it is larger than the sum of its proper divisors (47891269).

12310123211 is an equidigital number, since it uses as much as digits as its factorization.

12310123211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44493.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12310123211 its reverse (11232101321), we get a palindrome (23542224532).

The spelling of 12310123211 in words is "twelve billion, three hundred ten million, one hundred twenty-three thousand, two hundred eleven".

Divisors: 1 419 677 43397 283663 18183343 29379769 12310123211