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12310443311 = 19234100951
BaseRepresentation
bin10110111011100001…
…00111010100101111
31011202221021022111212
423131300213110233
5200202433141221
65353315305035
7614031020165
oct133560472457
934687238455
1012310443311
115247a192a1
1224768ab17b
13121257abaa
1484ad4d235
154c0b43b5b
hex2ddc2752f

12310443311 has 6 divisors (see below), whose sum is σ = 12992462712. Its totient is φ = 11662524900.

The previous prime is 12310443307. The next prime is 12310443329. The reversal of 12310443311 is 11334401321.

It is not a de Polignac number, because 12310443311 - 22 = 12310443307 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12310443371) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17050115 + ... + 17050836.

It is an arithmetic number, because the mean of its divisors is an integer number (2165410452).

Almost surely, 212310443311 is an apocalyptic number.

12310443311 is a deficient number, since it is larger than the sum of its proper divisors (682019401).

12310443311 is an equidigital number, since it uses as much as digits as its factorization.

12310443311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34100989 (or 34100970 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 12310443311 its reverse (11334401321), we get a palindrome (23644844632).

The spelling of 12310443311 in words is "twelve billion, three hundred ten million, four hundred forty-three thousand, three hundred eleven".

Divisors: 1 19 361 34100951 647918069 12310443311