203020311121 has 8 divisors (see below), whose sum is σ = 203304027200. Its totient is φ = 202736785680.

The previous prime is 203020311047. The next prime is 203020311163. The reversal of 203020311121 is 121113020302.

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 203020311121 - 2¹⁷ = 203020180049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203020311095 and 203020311104.

It is not an unprimeable number, because it can be changed into a prime (203020311181) 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, 2154175 + ... + 2246443.

It is an arithmetic number, because the mean of its divisors is an integer number (25413003400).

Almost surely, 2^203020311121 is an apocalyptic number.

It is an amenable number.

203020311121 is a deficient number, since it is larger than the sum of its proper divisors (283716079).

203020311121 is a wasteful number, since it uses less digits than its factorization.

203020311121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95319.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 203020311121 its reverse (121113020302), we get a palindrome (324133331423).

The spelling of 203020311121 in words is "two hundred three billion, twenty million, three hundred eleven thousand, one hundred twenty-one".