14143506315021 has 24 divisors (see below), whose sum is σ = 21534954887040. Its totient is φ = 9174166234416.

The previous prime is 14143506315017. The next prime is 14143506315083. The reversal of 14143506315021 is 12051360534141.

14143506315021 is a `hidden beast` number, since 1 + 4 + 1 + 43 + 50 + 63 + 1 + 502 + 1 = 666.

It is not a de Polignac number, because 14143506315021 - 2² = 14143506315017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14143506311021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 191282821 + ... + 191356746.

It is an arithmetic number, because the mean of its divisors is an integer number (897289786960).

Almost surely, 2^{14143506315021} is an apocalyptic number.

It is an amenable number.

14143506315021 is a deficient number, since it is larger than the sum of its proper divisors (7391448572019).

14143506315021 is an equidigital number, since it uses as much as digits as its factorization.

14143506315021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382639650 (or 382639607 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

Adding to 14143506315021 its reverse (12051360534141), we get a palindrome (26194866849162).

The spelling of 14143506315021 in words is "fourteen trillion, one hundred forty-three billion, five hundred six million, three hundred fifteen thousand, twenty-one".