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12120231130 = 257173146159
BaseRepresentation
bin10110100100110110…
…00000110011011010
31011021200100112110021
423102123000303122
5144310234344010
65322402341054
7606231156550
oct132233006332
934250315407
1012120231130
11515a611047
12242305a78a
1311b203c9c7
1482d997bd0
154ae0be8da
hex2d26c0cda

12120231130 has 16 divisors (see below), whose sum is σ = 24933047040. Its totient is φ = 4155507792.

The previous prime is 12120231091. The next prime is 12120231131. The reversal of 12120231130 is 3113202121.

It is not an unprimeable number, because it can be changed into a prime (12120231131) 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, 86573010 + ... + 86573149.

It is an arithmetic number, because the mean of its divisors is an integer number (1558315440).

Almost surely, 212120231130 is an apocalyptic number.

12120231130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12120231130 is an abundant number, since it is smaller than the sum of its proper divisors (12812815910).

12120231130 is a wasteful number, since it uses less digits than its factorization.

12120231130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173146173.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12120231130 its reverse (3113202121), we get a palindrome (15233433251).

The spelling of 12120231130 in words is "twelve billion, one hundred twenty million, two hundred thirty-one thousand, one hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 173146159 346292318 865730795 1212023113 1731461590 2424046226 6060115565 12120231130