213431203 has 4 divisors (see below), whose sum is σ = 213627568. Its totient is φ = 213234840.

The previous prime is 213431171. The next prime is 213431233. The reversal of 213431203 is 302134312.

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

It is a cyclic number.

It is not a de Polignac number, because 213431203 - 2⁵ = 213431171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213431233) 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, 96543 + ... + 98728.

It is an arithmetic number, because the mean of its divisors is an integer number (53406892).

Almost surely, 2^213431203 is an apocalyptic number.

213431203 is a deficient number, since it is larger than the sum of its proper divisors (196365).

213431203 is a wasteful number, since it uses less digits than its factorization.

213431203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196364.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 213431203 is about 14609.2848216468. The cubic root of 213431203 is about 597.6119925692.

Adding to 213431203 its reverse (302134312), we get a palindrome (515565515).

The spelling of 213431203 in words is "two hundred thirteen million, four hundred thirty-one thousand, two hundred three".