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12323434231 = 53773300799
BaseRepresentation
bin10110111101000100…
…01010111011110111
31011210211201022201001
423132202022323313
5200214244343411
65354501544131
7614246314453
oct133642127367
934724638631
1012323434231
115254291599
12247b115047
131215178c24
1484c971663
154c1d5cdc1
hex2de88aef7

12323434231 has 8 divisors (see below), whose sum is σ = 12572236800. Its totient is φ = 12075234912.

The previous prime is 12323434183. The next prime is 12323434241. The reversal of 12323434231 is 13243432321.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12323434231 is a prime.

It is a super-2 number, since 2×123234342312 (a number of 21 digits) contains 22 as substring.

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 12323434231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12323434241) 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, 109431 + ... + 191368.

It is an arithmetic number, because the mean of its divisors is an integer number (1571529600).

Almost surely, 212323434231 is an apocalyptic number.

12323434231 is a deficient number, since it is larger than the sum of its proper divisors (248802569).

12323434231 is an equidigital number, since it uses as much as digits as its factorization.

12323434231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301625.

The product of its digits is 10368, while the sum is 28.

Adding to 12323434231 its reverse (13243432321), we get a palindrome (25566866552).

The spelling of 12323434231 in words is "twelve billion, three hundred twenty-three million, four hundred thirty-four thousand, two hundred thirty-one".

Divisors: 1 53 773 40969 300799 15942347 232517627 12323434231