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12323430421 = 269151130319
BaseRepresentation
bin10110111101000100…
…01010000000010101
31011210211201010110221
423132202022000111
5200214244233141
65354501514341
7614246300401
oct133642120025
934724633427
1012323430421
115254289745
12247b1129b1
131215177283
1484c970101
154c1d5bbd1
hex2de88a015

12323430421 has 8 divisors (see below), whose sum is σ = 12377836800. Its totient is φ = 12269088240.

The previous prime is 12323430401. The next prime is 12323430437. The reversal of 12323430421 is 12403432321.

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 12323430421 - 27 = 12323430293 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 (12323430401) 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, 391300 + ... + 421618.

It is an arithmetic number, because the mean of its divisors is an integer number (1547229600).

Almost surely, 212323430421 is an apocalyptic number.

It is an amenable number.

12323430421 is a deficient number, since it is larger than the sum of its proper divisors (54406379).

12323430421 is a wasteful number, since it uses less digits than its factorization.

12323430421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32099.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 12323430421 its reverse (12403432321), we get a palindrome (24726862742).

The spelling of 12323430421 in words is "twelve billion, three hundred twenty-three million, four hundred thirty thousand, four hundred twenty-one".

Divisors: 1 269 1511 30319 406459 8155811 45812009 12323430421