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12310211233 = 50812422793
BaseRepresentation
bin10110111011011111…
…01110101010100001
31011202220211112011101
423131233232222201
5200202403224413
65353310314401
7614026032445
oct133557565241
934686745141
1012310211233
11524787a9a1
1224767b8a01
1312124c9378
1484accc825
154c0ae9edd
hex2ddbeeaa1

12310211233 has 4 divisors (see below), whose sum is σ = 12312639108. Its totient is φ = 12307783360.

The previous prime is 12310211203. The next prime is 12310211237. The reversal of 12310211233 is 33211201321.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7122178449 + 5188032784 = 84393^2 + 72028^2 .

It is a cyclic number.

It is not a de Polignac number, because 12310211233 - 213 = 12310203041 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 12310211233.

It is not an unprimeable number, because it can be changed into a prime (12310211237) 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, 1206316 + ... + 1216477.

It is an arithmetic number, because the mean of its divisors is an integer number (3078159777).

Almost surely, 212310211233 is an apocalyptic number.

It is an amenable number.

12310211233 is a deficient number, since it is larger than the sum of its proper divisors (2427875).

12310211233 is an equidigital number, since it uses as much as digits as its factorization.

12310211233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2427874.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12310211233 its reverse (33211201321), we get a palindrome (45521412554).

The spelling of 12310211233 in words is "twelve billion, three hundred ten million, two hundred eleven thousand, two hundred thirty-three".

Divisors: 1 5081 2422793 12310211233