421032431203 has 4 divisors (see below), whose sum is σ = 421034370640. Its totient is φ = 421030491768.

The previous prime is 421032431153. The next prime is 421032431207. The reversal of 421032431203 is 302134230124.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421032431203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421032431207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 596100 + ... + 1094257.

It is an arithmetic number, because the mean of its divisors is an integer number (105258592660).

Almost surely, 2^421032431203 is an apocalyptic number.

421032431203 is a deficient number, since it is larger than the sum of its proper divisors (1939437).

421032431203 is a wasteful number, since it uses less digits than its factorization.

421032431203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1939436.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 421032431203 its reverse (302134230124), we get a palindrome (723166661327).

The spelling of 421032431203 in words is "four hundred twenty-one billion, thirty-two million, four hundred thirty-one thousand, two hundred three".