421153203 has 16 divisors (see below), whose sum is σ = 578581920. Its totient is φ = 272295936.

The previous prime is 421153199. The next prime is 421153231. The reversal of 421153203 is 302351124.

It is not a de Polignac number, because 421153203 - 2² = 421153199 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 421153203.

It is not an unprimeable number, because it can be changed into a prime (421153273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29203 + ... + 41171.

It is an arithmetic number, because the mean of its divisors is an integer number (36161370).

Almost surely, 2^421153203 is an apocalyptic number.

421153203 is a deficient number, since it is larger than the sum of its proper divisors (157428717).

421153203 is a wasteful number, since it uses less digits than its factorization.

421153203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12326.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 421153203 is about 20522.0175177783. The cubic root of 421153203 is about 749.5720242733.

The spelling of 421153203 in words is "four hundred twenty-one million, one hundred fifty-three thousand, two hundred three".