14020015142421 has 12 divisors (see below), whose sum is σ = 20251264992972. Its totient is φ = 9346615834176.

The previous prime is 14020015142389. The next prime is 14020015142437. The reversal of 14020015142421 is 12424151002041.

14020015142421 is a `hidden beast` number, since 1 + 4 + 0 + 200 + 15 + 1 + 424 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6887317896900 + 7132697245521 = 2624370^2 + 2670711^2 .

It is not a de Polignac number, because 14020015142421 - 2⁵ = 14020015142389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14020015142461) 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 11 ways as a sum of consecutive naturals, for example, 3597216 + ... + 6401561.

It is an arithmetic number, because the mean of its divisors is an integer number (1687605416081).

Almost surely, 2^{14020015142421} is an apocalyptic number.

It is an amenable number.

14020015142421 is a deficient number, since it is larger than the sum of its proper divisors (6231249850551).

14020015142421 is a wasteful number, since it uses less digits than its factorization.

14020015142421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10154580 (or 10154577 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

Adding to 14020015142421 its reverse (12424151002041), we get a palindrome (26444166144462).

The spelling of 14020015142421 in words is "fourteen trillion, twenty billion, fifteen million, one hundred forty-two thousand, four hundred twenty-one".