100003420200421 has 4 divisors (see below), whose sum is σ = 100014963949152. Its totient is φ = 99991876451692.

The previous prime is 100003420200403. The next prime is 100003420200433. The reversal of 100003420200421 is 124002024300001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100003420200421 - 2²⁹ = 100002883329509 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 (100003420204421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5771861371 + ... + 5771878696.

It is an arithmetic number, because the mean of its divisors is an integer number (25003740987288).

Almost surely, 2^{100003420200421} is an apocalyptic number.

It is an amenable number.

100003420200421 is a deficient number, since it is larger than the sum of its proper divisors (11543748731).

100003420200421 is an equidigital number, since it uses as much as digits as its factorization.

100003420200421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11543748730.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 100003420200421 its reverse (124002024300001), we get a palindrome (224005444500422).

The spelling of 100003420200421 in words is "one hundred trillion, three billion, four hundred twenty million, two hundred thousand, four hundred twenty-one".