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12231041430 = 2352367326339
BaseRepresentation
bin10110110010000011…
…01110000110010110
31011120101212021121110
423121001232012112
5200022121311210
65341401355450
7612045064626
oct133101560626
934511767543
1012231041430
115207116503
122454198b86
1311cbc99b2a
148405a0886
154b8bac420
hex2d906e196

12231041430 has 64 divisors (see below), whose sum is σ = 30677460480. Its totient is φ = 3115047936.

The previous prime is 12231041371. The next prime is 12231041441. The reversal of 12231041430 is 3414013221.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12231041397 and 12231041406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 451201 + ... + 477539.

It is an arithmetic number, because the mean of its divisors is an integer number (479335320).

Almost surely, 212231041430 is an apocalyptic number.

12231041430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12231041430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15338730240).

12231041430 is an abundant number, since it is smaller than the sum of its proper divisors (18446419050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12231041430 is a wasteful number, since it uses less digits than its factorization.

12231041430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27045.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 12231041430 its reverse (3414013221), we get a palindrome (15645054651).

The spelling of 12231041430 in words is "twelve billion, two hundred thirty-one million, forty-one thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 23 30 46 69 115 138 230 345 673 690 1346 2019 3365 4038 6730 10095 15479 20190 26339 30958 46437 52678 77395 79017 92874 131695 154790 158034 232185 263390 395085 464370 605797 790170 1211594 1817391 3028985 3634782 6057970 9086955 17726147 18173910 35452294 53178441 88630735 106356882 177261470 265892205 407701381 531784410 815402762 1223104143 2038506905 2446208286 4077013810 6115520715 12231041430