14021321231021 has 16 divisors (see below), whose sum is σ = 15142209001920. Its totient is φ = 12906527437440.

The previous prime is 14021321231009. The next prime is 14021321231077. The reversal of 14021321231021 is 12013212312041.

It is a de Polignac number, because none of the positive numbers 2^k-14021321231021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14021321231321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6083090 + ... + 8065148.

It is an arithmetic number, because the mean of its divisors is an integer number (946388062620).

Almost surely, 2^{14021321231021} is an apocalyptic number.

It is an amenable number.

14021321231021 is a deficient number, since it is larger than the sum of its proper divisors (1120887770899).

14021321231021 is a wasteful number, since it uses less digits than its factorization.

14021321231021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1983596.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 14021321231021 its reverse (12013212312041), we get a palindrome (26034533543062).

The spelling of 14021321231021 in words is "fourteen trillion, twenty-one billion, three hundred twenty-one million, two hundred thirty-one thousand, twenty-one".