14002002021401 has 4 divisors (see below), whose sum is σ = 14159327886900. Its totient is φ = 13844676155904.

The previous prime is 14002002021383. The next prime is 14002002021433. The reversal of 14002002021401 is 10412020020041.

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 6322031353225 + 7679970668176 = 2514365^2 + 2771276^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14002002021401 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14002002021401.

It is not an unprimeable number, because it can be changed into a prime (14002002021101) 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, 78662932616 + ... + 78662932793.

It is an arithmetic number, because the mean of its divisors is an integer number (3539831971725).

Almost surely, 2^{14002002021401} is an apocalyptic number.

It is an amenable number.

14002002021401 is a deficient number, since it is larger than the sum of its proper divisors (157325865499).

14002002021401 is an equidigital number, since it uses as much as digits as its factorization.

14002002021401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157325865498.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 14002002021401 its reverse (10412020020041), we get a palindrome (24414022041442).

The spelling of 14002002021401 in words is "fourteen trillion, two billion, two million, twenty-one thousand, four hundred one".