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12000231101 = 15776434593
BaseRepresentation
bin10110010110100010…
…01111111010111101
31010222022112220100202
423023101033322331
5144034024343401
65302434333245
7603243165335
oct131321177275
933868486322
1012000231101
1150a88aa271
1223aaa2a225
131193215a81
1481ba7c0c5
154a37b906b
hex2cb44febd

12000231101 has 4 divisors (see below), whose sum is σ = 12076665852. Its totient is φ = 11923796352.

The previous prime is 12000231097. The next prime is 12000231121. The reversal of 12000231101 is 10113200021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2629023076 + 9371208025 = 51274^2 + 96805^2 .

It is a cyclic number.

It is not a de Polignac number, because 12000231101 - 22 = 12000231097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000231121) 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, 38217140 + ... + 38217453.

It is an arithmetic number, because the mean of its divisors is an integer number (3019166463).

Almost surely, 212000231101 is an apocalyptic number.

It is an amenable number.

12000231101 is a deficient number, since it is larger than the sum of its proper divisors (76434751).

12000231101 is an equidigital number, since it uses as much as digits as its factorization.

12000231101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76434750.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 12000231101 its reverse (10113200021), we get a palindrome (22113431122).

The spelling of 12000231101 in words is "twelve billion, two hundred thirty-one thousand, one hundred one".

Divisors: 1 157 76434593 12000231101