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12100321430 = 252335193271
BaseRepresentation
bin10110100010011110…
…00100000010010110
31011020021220000110222
423101033010002112
5144240140241210
65320411514342
7605600015021
oct132117040226
934207800428
1012100321430
11514a35264a
1224184589b2
1311aab8b712
1482b0941b8
154ac48a655
hex2d13c4096

12100321430 has 16 divisors (see below), whose sum is σ = 21874061664. Its totient is φ = 4819354560.

The previous prime is 12100321417. The next prime is 12100321433. The reversal of 12100321430 is 3412300121.

It is a junction number, because it is equal to n+sod(n) for n = 12100321399 and 12100321408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100321433) 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, 2594306 + ... + 2598965.

It is an arithmetic number, because the mean of its divisors is an integer number (1367128854).

Almost surely, 212100321430 is an apocalyptic number.

12100321430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12100321430 is a deficient number, since it is larger than the sum of its proper divisors (9773740234).

12100321430 is a wasteful number, since it uses less digits than its factorization.

12100321430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5193511.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12100321430 its reverse (3412300121), we get a palindrome (15512621551).

The spelling of 12100321430 in words is "twelve billion, one hundred million, three hundred twenty-one thousand, four hundred thirty".

Divisors: 1 2 5 10 233 466 1165 2330 5193271 10386542 25966355 51932710 1210032143 2420064286 6050160715 12100321430