201120003421 has 4 divisors (see below), whose sum is σ = 201122592352. Its totient is φ = 201117414492.

The previous prime is 201120003397. The next prime is 201120003433. The reversal of 201120003421 is 124300021102.

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 201120003421 - 2⁵ = 201120003389 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201120003395 and 201120003404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201120003221) 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, 1174215 + ... + 1334548.

It is an arithmetic number, because the mean of its divisors is an integer number (50280648088).

Almost surely, 2^201120003421 is an apocalyptic number.

It is an amenable number.

201120003421 is a deficient number, since it is larger than the sum of its proper divisors (2588931).

201120003421 is an equidigital number, since it uses as much as digits as its factorization.

201120003421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2588930.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 201120003421 its reverse (124300021102), we get a palindrome (325420024523).

The spelling of 201120003421 in words is "two hundred one billion, one hundred twenty million, three thousand, four hundred twenty-one".