4420143234421 has 16 divisors (see below), whose sum is σ = 4628992311936. Its totient is φ = 4212685642176.

The previous prime is 4420143234389. The next prime is 4420143234443. The reversal of 4420143234421 is 1244323410244.

It is not a de Polignac number, because 4420143234421 - 2⁵ = 4420143234389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4420143234121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126081331 + ... + 126116383.

It is an arithmetic number, because the mean of its divisors is an integer number (289312019496).

Almost surely, 2^{4420143234421} is an apocalyptic number.

It is an amenable number.

4420143234421 is a deficient number, since it is larger than the sum of its proper divisors (208849077515).

4420143234421 is a wasteful number, since it uses less digits than its factorization.

4420143234421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54732.

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 4420143234421 its reverse (1244323410244), we get a palindrome (5664466644665).

It can be divided in two parts, 4420143 and 234421, that added together give a palindrome (4654564).

The spelling of 4420143234421 in words is "four trillion, four hundred twenty billion, one hundred forty-three million, two hundred thirty-four thousand, four hundred twenty-one".