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13201132123 = 17863739021
BaseRepresentation
bin11000100101101100…
…10100101001011011
31021002000020222212101
430102312110221123
5204013442211443
610021534024231
7645064525444
oct142266245133
937060228771
1013201132123
115664770a53
122685048077
131324c643aa
148d33642cb
15523e3184d
hex312d94a5b

13201132123 has 4 divisors (see below), whose sum is σ = 13201889008. Its totient is φ = 13200375240.

The previous prime is 13201132117. The next prime is 13201132159. The reversal of 13201132123 is 32123110231.

13201132123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32123110231 = 169918907069.

It is a cyclic number.

It is not a de Polignac number, because 13201132123 - 29 = 13201131611 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13201132123.

It is not an unprimeable number, because it can be changed into a prime (13201132193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351648 + ... + 387373.

It is an arithmetic number, because the mean of its divisors is an integer number (3300472252).

Almost surely, 213201132123 is an apocalyptic number.

13201132123 is a deficient number, since it is larger than the sum of its proper divisors (756885).

13201132123 is an equidigital number, since it uses as much as digits as its factorization.

13201132123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756884.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 13201132123 its reverse (32123110231), we get a palindrome (45324242354).

The spelling of 13201132123 in words is "thirteen billion, two hundred one million, one hundred thirty-two thousand, one hundred twenty-three".

Divisors: 1 17863 739021 13201132123