2001232103121 has 8 divisors (see below), whose sum is σ = 2964788300960. Its totient is φ = 1334154735396.

The previous prime is 2001232103047. The next prime is 2001232103147. The reversal of 2001232103121 is 1213012321002.

2001232103121 is a `hidden beast` number, since 20 + 0 + 12 + 321 + 0 + 312 + 1 = 666.

It is not a de Polignac number, because 2001232103121 - 2⁹ = 2001232102609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2001232103094 and 2001232103103.

It is not an unprimeable number, because it can be changed into a prime (2001232103621) 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, 37059853735 + ... + 37059853788.

It is an arithmetic number, because the mean of its divisors is an integer number (370598537620).

Almost surely, 2^{2001232103121} is an apocalyptic number.

It is an amenable number.

2001232103121 is a deficient number, since it is larger than the sum of its proper divisors (963556197839).

2001232103121 is an equidigital number, since it uses as much as digits as its factorization.

2001232103121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74119707532 (or 74119707526 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 2001232103121 its reverse (1213012321002), we get a palindrome (3214244424123).

The spelling of 2001232103121 in words is "two trillion, one billion, two hundred thirty-two million, one hundred three thousand, one hundred twenty-one".