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12231130424 = 231897980557
BaseRepresentation
bin10110110010000100…
…00011110100111000
31011120102000210200112
423121002003310320
5200022132133144
65341403323452
7612045615242
oct133102036470
934512023615
1012231130424
115207177357
122454220588
1311cbccb4a6
148405c5092
154b8bc899e
hex2d9083d38

12231130424 has 16 divisors (see below), whose sum is σ = 22934862600. Its totient is φ = 6115167072.

The previous prime is 12231130421. The next prime is 12231130427. The reversal of 12231130424 is 42403113221.

It is an interprime number because it is at equal distance from previous prime (12231130421) and next prime (12231130427).

It is a self number, because there is not a number n which added to its sum of digits gives 12231130424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12231130421) 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, 111554 + ... + 192110.

Almost surely, 212231130424 is an apocalyptic number.

It is an amenable number.

12231130424 is a deficient number, since it is larger than the sum of its proper divisors (10703732176).

12231130424 is a wasteful number, since it uses less digits than its factorization.

12231130424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99542 (or 99538 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 12231130424 its reverse (42403113221), we get a palindrome (54634243645).

The spelling of 12231130424 in words is "twelve billion, two hundred thirty-one million, one hundred thirty thousand, four hundred twenty-four".

Divisors: 1 2 4 8 18979 37958 75916 80557 151832 161114 322228 644456 1528891303 3057782606 6115565212 12231130424