14001403002421 has 4 divisors (see below), whose sum is σ = 14230934199244. Its totient is φ = 13771871805600.

The previous prime is 14001403002409. The next prime is 14001403002469. The reversal of 14001403002421 is 12420030410041.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4434667398225 + 9566735604196 = 2105865^2 + 3093014^2 .

It is a cyclic number.

It is not a de Polignac number, because 14001403002421 - 2⁹ = 14001403001909 is a prime.

It is a super-2 number, since 2×14001403002421² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14001403002392 and 14001403002401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14001403008421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114765598320 + ... + 114765598441.

It is an arithmetic number, because the mean of its divisors is an integer number (3557733549811).

Almost surely, 2^{14001403002421} is an apocalyptic number.

It is an amenable number.

14001403002421 is a deficient number, since it is larger than the sum of its proper divisors (229531196823).

14001403002421 is an equidigital number, since it uses as much as digits as its factorization.

14001403002421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229531196822.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 14001403002421 its reverse (12420030410041), we get a palindrome (26421433412462).

The spelling of 14001403002421 in words is "fourteen trillion, one billion, four hundred three million, two thousand, four hundred twenty-one".