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12133231130 = 251213323113
BaseRepresentation
bin10110100110011001…
…00110101000011010
31011022120211000002202
423103030212220122
5144322101344010
65323545130202
7606446522456
oct132314465032
934276730082
1012133231130
115166990149
122427489962
1311b4941c07
148315bd666
154b02db6a5
hex2d3326a1a

12133231130 has 8 divisors (see below), whose sum is σ = 21839816052. Its totient is φ = 4853292448.

The previous prime is 12133231093. The next prime is 12133231133. The reversal of 12133231130 is 3113233121.

It can be written as a sum of positive squares in 2 ways, for example, as 11577544801 + 555686329 = 107599^2 + 23573^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12133231133) 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, 606661547 + ... + 606661566.

Almost surely, 212133231130 is an apocalyptic number.

12133231130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12133231130 is a deficient number, since it is larger than the sum of its proper divisors (9706584922).

12133231130 is a wasteful number, since it uses less digits than its factorization.

12133231130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213323120.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 12133231130 its reverse (3113233121), we get a palindrome (15246464251).

The spelling of 12133231130 in words is "twelve billion, one hundred thirty-three million, two hundred thirty-one thousand, one hundred thirty".

Divisors: 1 2 5 10 1213323113 2426646226 6066615565 12133231130