4321401422251 has 4 divisors (see below), whose sum is σ = 4330423137600. Its totient is φ = 4312379706904.

The previous prime is 4321401422243. The next prime is 4321401422281. The reversal of 4321401422251 is 1522241041234.

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

It is a cyclic number.

It is not a de Polignac number, because 4321401422251 - 2³ = 4321401422243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4321401422281) 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 3 ways as a sum of consecutive naturals, for example, 4510856956 + ... + 4510857913.

It is an arithmetic number, because the mean of its divisors is an integer number (1082605784400).

Almost surely, 2^{4321401422251} is an apocalyptic number.

4321401422251 is a deficient number, since it is larger than the sum of its proper divisors (9021715349).

4321401422251 is an equidigital number, since it uses as much as digits as its factorization.

4321401422251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9021715348.

The product of its (nonzero) digits is 15360, while the sum is 31.

Adding to 4321401422251 its reverse (1522241041234), we get a palindrome (5843642463485).

The spelling of 4321401422251 in words is "four trillion, three hundred twenty-one billion, four hundred one million, four hundred twenty-two thousand, two hundred fifty-one".