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13123202210201 = 44929227621849
BaseRepresentation
bin1011111011110111101111…
…0011100101100110011001
31201110120021112012021100202
42332331323303211212121
53210002304231211301
643524414343311545
72523056120200526
oct276757363454631
951416245167322
1013123202210201
1141aa578587826
12157b445a4b5b5
13742688406305
1433524877014d
1517b57082566b
hexbef7bce5999

13123202210201 has 4 divisors (see below), whose sum is σ = 13152429832500. Its totient is φ = 13093974587904.

The previous prime is 13123202210191. The next prime is 13123202210207. The reversal of 13123202210201 is 10201220232131.

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 10922370619801 + 2200831590400 = 3304901^2 + 1483520^2 .

It is a cyclic number.

It is not a de Polignac number, because 13123202210201 - 218 = 13123201948057 is a prime.

It is a super-2 number, since 2×131232022102012 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13123202210207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14613810476 + ... + 14613811373.

It is an arithmetic number, because the mean of its divisors is an integer number (3288107458125).

Almost surely, 213123202210201 is an apocalyptic number.

It is an amenable number.

13123202210201 is a deficient number, since it is larger than the sum of its proper divisors (29227622299).

13123202210201 is an equidigital number, since it uses as much as digits as its factorization.

13123202210201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29227622298.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 13123202210201 its reverse (10201220232131), we get a palindrome (23324422442332).

The spelling of 13123202210201 in words is "thirteen trillion, one hundred twenty-three billion, two hundred two million, two hundred ten thousand, two hundred one".

Divisors: 1 449 29227621849 13123202210201