203213013 has 8 divisors (see below), whose sum is σ = 271031808. Its totient is φ = 135434784.

The previous prime is 203212993. The next prime is 203213033. The reversal of 203213013 is 310312302.

It is an interprime number because it is at equal distance from previous prime (203212993) and next prime (203213033).

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

It is not a de Polignac number, because 203213013 - 2²⁴ = 186435797 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 203212983 and 203213001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203213033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4620 + ... + 20682.

It is an arithmetic number, because the mean of its divisors is an integer number (33878976).

Almost surely, 2^203213013 is an apocalyptic number.

It is an amenable number.

203213013 is a deficient number, since it is larger than the sum of its proper divisors (67818795).

203213013 is a wasteful number, since it uses less digits than its factorization.

203213013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20283.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 203213013 is about 14255.2801796387. The cubic root of 203213013 is about 587.9185614224.

Adding to 203213013 its reverse (310312302), we get a palindrome (513525315).

The spelling of 203213013 in words is "two hundred three million, two hundred thirteen thousand, thirteen".