203020213 has 24 divisors (see below), whose sum is σ = 235952640. Its totient is φ = 174266400.

The previous prime is 203020211. The next prime is 203020217. The reversal of 203020213 is 312020302.

It is a happy number.

It is not a de Polignac number, because 203020213 - 2¹ = 203020211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 203020193 and 203020202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203020211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 164308 + ... + 165538.

It is an arithmetic number, because the mean of its divisors is an integer number (9831360).

Almost surely, 2^203020213 is an apocalyptic number.

It is an amenable number.

203020213 is a deficient number, since it is larger than the sum of its proper divisors (32932427).

203020213 is a wasteful number, since it uses less digits than its factorization.

203020213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1329 (or 1318 counting only the distinct ones).

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

The square root of 203020213 is about 14248.5161683594. The cubic root of 203020213 is about 587.7325717502.

Adding to 203020213 its reverse (312020302), we get a palindrome (515040515).

The spelling of 203020213 in words is "two hundred three million, twenty thousand, two hundred thirteen".