2331667121 has 4 divisors (see below), whose sum is σ = 2664762432. Its totient is φ = 1998571812.

The previous prime is 2331667103. The next prime is 2331667207. The reversal of 2331667121 is 1217661332.

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 2331667121 - 2²² = 2327472817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2331667421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166547645 + ... + 166547658.

It is an arithmetic number, because the mean of its divisors is an integer number (666190608).

Almost surely, 2^2331667121 is an apocalyptic number.

It is an amenable number.

2331667121 is a deficient number, since it is larger than the sum of its proper divisors (333095311).

2331667121 is an equidigital number, since it uses as much as digits as its factorization.

2331667121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333095310.

The product of its digits is 9072, while the sum is 32.

The square root of 2331667121 is about 48287.3391377077. The cubic root of 2331667121 is about 1326.0366153487.

The spelling of 2331667121 in words is "two billion, three hundred thirty-one million, six hundred sixty-seven thousand, one hundred twenty-one".