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12110231801 is a prime number
BaseRepresentation
bin10110100011101001…
…10111100011111001
31011020222112111221202
423101310313203321
5144300204404201
65321404143545
7606050162153
oct132164674371
934228474852
1012110231801
115154a01438
12241b837bb5
1311acc4b545
1482c513ad3
154ad296c6b
hex2d1d378f9

12110231801 has 2 divisors, whose sum is σ = 12110231802. Its totient is φ = 12110231800.

The previous prime is 12110231773. The next prime is 12110231803. The reversal of 12110231801 is 10813201121.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9516978025 + 2593253776 = 97555^2 + 50924^2 .

It is a cyclic number.

It is not a de Polignac number, because 12110231801 - 26 = 12110231737 is a prime.

Together with 12110231803, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12110231803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6055115900 + 6055115901.

It is an arithmetic number, because the mean of its divisors is an integer number (6055115901).

Almost surely, 212110231801 is an apocalyptic number.

It is an amenable number.

12110231801 is a deficient number, since it is larger than the sum of its proper divisors (1).

12110231801 is an equidigital number, since it uses as much as digits as its factorization.

12110231801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 12110231801 its reverse (10813201121), we get a palindrome (22923432922).

The spelling of 12110231801 in words is "twelve billion, one hundred ten million, two hundred thirty-one thousand, eight hundred one".