202030233121 has 4 divisors (see below), whose sum is σ = 202169469744. Its totient is φ = 201890996500.

The previous prime is 202030233089. The next prime is 202030233151. The reversal of 202030233121 is 121332030202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 202030233121 - 2⁵ = 202030233089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202030233151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69616135 + ... + 69619036.

It is an arithmetic number, because the mean of its divisors is an integer number (50542367436).

Almost surely, 2^202030233121 is an apocalyptic number.

It is an amenable number.

202030233121 is a deficient number, since it is larger than the sum of its proper divisors (139236623).

202030233121 is a wasteful number, since it uses less digits than its factorization.

202030233121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139236622.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 202030233121 its reverse (121332030202), we get a palindrome (323362263323).

The spelling of 202030233121 in words is "two hundred two billion, thirty million, two hundred thirty-three thousand, one hundred twenty-one".