4203323421 has 8 divisors (see below), whose sum is σ = 6113925024. Its totient is φ = 2547468720.

The previous prime is 4203323329. The next prime is 4203323437. The reversal of 4203323421 is 1243233024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4203323421 - 2¹⁸ = 4203061277 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4203323391 and 4203323400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4203323471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63686686 + ... + 63686751.

It is an arithmetic number, because the mean of its divisors is an integer number (764240628).

Almost surely, 2^4203323421 is an apocalyptic number.

It is an amenable number.

4203323421 is a deficient number, since it is larger than the sum of its proper divisors (1910601603).

4203323421 is a wasteful number, since it uses less digits than its factorization.

4203323421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127373451.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 4203323421 is about 64833.0426634444. The cubic root of 4203323421 is about 1613.8540975276.

Adding to 4203323421 its reverse (1243233024), we get a palindrome (5446556445).

The spelling of 4203323421 in words is "four billion, two hundred three million, three hundred twenty-three thousand, four hundred twenty-one".