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12234122431 = 15749776819
BaseRepresentation
bin10110110010011010…
…11110010010111111
31011120121122210221121
423121031132102333
5200023413404211
65341551411411
7612113216266
oct133115362277
934517583847
1012234122431
115208930293
122455223b67
1311cc8082cb
14840b635dd
154b90ba271
hex2d935e4bf

12234122431 has 4 divisors (see below), whose sum is σ = 12234915000. Its totient is φ = 12233329864.

The previous prime is 12234122423. The next prime is 12234122443. The reversal of 12234122431 is 13422143221.

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 12234122431 - 23 = 12234122423 is a prime.

It is a super-2 number, since 2×122341224312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12234122396 and 12234122405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12234122731) 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, 372661 + ... + 404158.

It is an arithmetic number, because the mean of its divisors is an integer number (3058728750).

Almost surely, 212234122431 is an apocalyptic number.

12234122431 is a deficient number, since it is larger than the sum of its proper divisors (792569).

12234122431 is an equidigital number, since it uses as much as digits as its factorization.

12234122431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792568.

The product of its digits is 2304, while the sum is 25.

Adding to 12234122431 its reverse (13422143221), we get a palindrome (25656265652).

The spelling of 12234122431 in words is "twelve billion, two hundred thirty-four million, one hundred twenty-two thousand, four hundred thirty-one".

Divisors: 1 15749 776819 12234122431