231020122011121 has 8 divisors (see below), whose sum is σ = 243179268484320. Its totient is φ = 218860994806272.

The previous prime is 231020122011047. The next prime is 231020122011149. The reversal of 231020122011121 is 121110221020132.

231020122011121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 231020122011121 - 2³³ = 231011532076529 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231020122011221) 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, 24308766 + ... + 32449288.

It is an arithmetic number, because the mean of its divisors is an integer number (30397408560540).

Almost surely, 2^{231020122011121} is an apocalyptic number.

It is an amenable number.

231020122011121 is a deficient number, since it is larger than the sum of its proper divisors (12159146473199).

231020122011121 is a wasteful number, since it uses less digits than its factorization.

231020122011121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9634175.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 231020122011121 its reverse (121110221020132), we get a palindrome (352130343031253).

The spelling of 231020122011121 in words is "two hundred thirty-one trillion, twenty billion, one hundred twenty-two million, eleven thousand, one hundred twenty-one".