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14123131021 = 177523110431
BaseRepresentation
bin11010010011100110…
…11110000010001101
31100110021011101120201
431021303132002031
5212411010143041
610253231413501
71006661430046
oct151163360215
940407141521
1014123131021
115a9815940a
1228a1984291
131440c90c7c
1497d9a98cd
15579d56631
hex349cde08d

14123131021 has 8 divisors (see below), whose sum is σ = 14956026624. Its totient is φ = 13290471360.

The previous prime is 14123131013. The next prime is 14123131037. The reversal of 14123131021 is 12013132141.

14123131021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 14123131021 - 23 = 14123131013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 14123131021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14120131021) 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 7 ways as a sum of consecutive naturals, for example, 72676 + ... + 183106.

It is an arithmetic number, because the mean of its divisors is an integer number (1869503328).

Almost surely, 214123131021 is an apocalyptic number.

It is an amenable number.

14123131021 is a deficient number, since it is larger than the sum of its proper divisors (832895603).

14123131021 is a wasteful number, since it uses less digits than its factorization.

14123131021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117971.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 14123131021 its reverse (12013132141), we get a palindrome (26136263162).

The spelling of 14123131021 in words is "fourteen billion, one hundred twenty-three million, one hundred thirty-one thousand, twenty-one".

Divisors: 1 17 7523 110431 127891 1877327 830772413 14123131021