203002213 has 6 divisors (see below), whose sum is σ = 214249254. Its totient is φ = 192317544.

The previous prime is 203002207. The next prime is 203002231. The reversal of 203002213 is 312200302.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 196616484 + 6385729 = 14022^2 + 2527^2 .

It is not a de Polignac number, because 203002213 - 2²⁵ = 169447781 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203002193 and 203002202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203002273) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 280806 + ... + 281527.

It is an arithmetic number, because the mean of its divisors is an integer number (35708209).

Almost surely, 2^203002213 is an apocalyptic number.

It is an amenable number.

203002213 is a deficient number, since it is larger than the sum of its proper divisors (11247041).

203002213 is an equidigital number, since it uses as much as digits as its factorization.

203002213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562371 (or 562352 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 203002213 is about 14247.8845096386. The cubic root of 203002213 is about 587.7152015603.

Adding to 203002213 its reverse (312200302), we get a palindrome (515202515).

The spelling of 203002213 in words is "two hundred three million, two thousand, two hundred thirteen".