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12111210130 = 251211121013
BaseRepresentation
bin10110100011110001…
…00110011010010010
31011021001101012222011
423101320212122102
5144300432211010
65321441133134
7606061405345
oct132170463222
934231335864
1012111210130
11515550a478
12242002a1aa
1311b0201936
1482c6ca45c
154ad3dba8a
hex2d1e26692

12111210130 has 8 divisors (see below), whose sum is σ = 21800178252. Its totient is φ = 4844484048.

The previous prime is 12111210121. The next prime is 12111210149. The reversal of 12111210130 is 3101211121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11798521641 + 312688489 = 108621^2 + 17683^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 12111210130.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 605560497 + ... + 605560516.

Almost surely, 212111210130 is an apocalyptic number.

12111210130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12111210130 is a deficient number, since it is larger than the sum of its proper divisors (9688968122).

12111210130 is a wasteful number, since it uses less digits than its factorization.

12111210130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211121020.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 12111210130 its reverse (3101211121), we get a palindrome (15212421251).

Subtracting from 12111210130 its reverse (3101211121), we obtain a palindrome (9009999009).

The spelling of 12111210130 in words is "twelve billion, one hundred eleven million, two hundred ten thousand, one hundred thirty".

Divisors: 1 2 5 10 1211121013 2422242026 6055605065 12111210130