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12000231113 = 13923094701
BaseRepresentation
bin10110010110100010…
…01111111011001001
31010222022112220101012
423023101033323021
5144034024343423
65302434333305
7603243165353
oct131321177311
933868486335
1012000231113
1150a88aa282
1223aaa2a235
131193215a90
1481ba7c0d3
154a37b9078
hex2cb44fec9

12000231113 has 4 divisors (see below), whose sum is σ = 12923325828. Its totient is φ = 11077136400.

The previous prime is 12000231097. The next prime is 12000231121. The reversal of 12000231113 is 31113200021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31113200021 = 231352747827.

It can be written as a sum of positive squares in 2 ways, for example, as 4809699904 + 7190531209 = 69352^2 + 84797^2 .

It is a cyclic number.

It is not a de Polignac number, because 12000231113 - 24 = 12000231097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12000231193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 461547338 + ... + 461547363.

It is an arithmetic number, because the mean of its divisors is an integer number (3230831457).

Almost surely, 212000231113 is an apocalyptic number.

12000231113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12000231113 is a deficient number, since it is larger than the sum of its proper divisors (923094715).

12000231113 is an equidigital number, since it uses as much as digits as its factorization.

12000231113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923094714.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 12000231113 its reverse (31113200021), we get a palindrome (43113431134).

The spelling of 12000231113 in words is "twelve billion, two hundred thirty-one thousand, one hundred thirteen".

Divisors: 1 13 923094701 12000231113