203421002 has 8 divisors (see below), whose sum is σ = 305194176. Its totient is φ = 101689612.

The previous prime is 203420953. The next prime is 203421007. The reversal of 203421002 is 200124302.

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

It is not an unprimeable number, because it can be changed into a prime (203421007) 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, 8873 + ... + 22035.

It is an arithmetic number, because the mean of its divisors is an integer number (38149272).

Almost surely, 2^203421002 is an apocalyptic number.

203421002 is a deficient number, since it is larger than the sum of its proper divisors (101773174).

203421002 is a wasteful number, since it uses less digits than its factorization.

203421002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20892.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 203421002 is about 14262.5734704506. The cubic root of 203421002 is about 588.1190717103.

Adding to 203421002 its reverse (200124302), we get a palindrome (403545304).

The spelling of 203421002 in words is "two hundred three million, four hundred twenty-one thousand, two".