203113020221 has 8 divisors (see below), whose sum is σ = 221175703200. Its totient is φ = 185787589680.

The previous prime is 203113020211. The next prime is 203113020251. The reversal of 203113020221 is 122020311302.

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

It is a cyclic number.

It is not a de Polignac number, because 203113020221 - 2²⁶ = 203045911357 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 203113020221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203113020211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184312535 + ... + 184313636.

It is an arithmetic number, because the mean of its divisors is an integer number (27646962900).

Almost surely, 2^203113020221 is an apocalyptic number.

It is an amenable number.

203113020221 is a deficient number, since it is larger than the sum of its proper divisors (18062682979).

203113020221 is a wasteful number, since it uses less digits than its factorization.

203113020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368626219.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 203113020221 its reverse (122020311302), we get a palindrome (325133331523).

The spelling of 203113020221 in words is "two hundred three billion, one hundred thirteen million, twenty thousand, two hundred twenty-one".