203201031121 has 8 divisors (see below), whose sum is σ = 221943866688. Its totient is φ = 184503198000.

The previous prime is 203201031119. The next prime is 203201031149. The reversal of 203201031121 is 121130102302.

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

It is not a de Polignac number, because 203201031121 - 2¹ = 203201031119 is a prime.

It is a super-2 number, since 2×203201031121² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203201031095 and 203201031104.

It is not an unprimeable number, because it can be changed into a prime (203201031191) 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, 11241165 + ... + 11259226.

It is an arithmetic number, because the mean of its divisors is an integer number (27742983336).

Almost surely, 2^203201031121 is an apocalyptic number.

It is an amenable number.

203201031121 is a deficient number, since it is larger than the sum of its proper divisors (18742835567).

203201031121 is a wasteful number, since it uses less digits than its factorization.

203201031121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22501223.

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

Adding to 203201031121 its reverse (121130102302), we get a palindrome (324331133423).

The spelling of 203201031121 in words is "two hundred three billion, two hundred one million, thirty-one thousand, one hundred twenty-one".