421244012203 has 4 divisors (see below), whose sum is σ = 481421728240. Its totient is φ = 361066296168.

The previous prime is 421244012183. The next prime is 421244012209. The reversal of 421244012203 is 302210442124.

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-421244012203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421244012209) 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, 30088858008 + ... + 30088858021.

It is an arithmetic number, because the mean of its divisors is an integer number (120355432060).

Almost surely, 2^421244012203 is an apocalyptic number.

421244012203 is a deficient number, since it is larger than the sum of its proper divisors (60177716037).

421244012203 is an equidigital number, since it uses as much as digits as its factorization.

421244012203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60177716036.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 421244012203 its reverse (302210442124), we get a palindrome (723454454327).

The spelling of 421244012203 in words is "four hundred twenty-one billion, two hundred forty-four million, twelve thousand, two hundred three".