2203451421 has 4 divisors (see below), whose sum is σ = 2937935232. Its totient is φ = 1468967612.

The previous prime is 2203451401. The next prime is 2203451423. The reversal of 2203451421 is 1241543022.

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 2203451421 - 2¹⁴ = 2203435037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2203451391 and 2203451400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2203451423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 367241901 + ... + 367241906.

It is an arithmetic number, because the mean of its divisors is an integer number (734483808).

Almost surely, 2^2203451421 is an apocalyptic number.

It is an amenable number.

2203451421 is a deficient number, since it is larger than the sum of its proper divisors (734483811).

2203451421 is an equidigital number, since it uses as much as digits as its factorization.

2203451421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734483810.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 2203451421 is about 46940.9354508408. The cubic root of 2203451421 is about 1301.2712261309.

Adding to 2203451421 its reverse (1241543022), we get a palindrome (3444994443).

The spelling of 2203451421 in words is "two billion, two hundred three million, four hundred fifty-one thousand, four hundred twenty-one".