2331240121 has 6 divisors (see below), whose sum is σ = 2711850810. Its totient is φ = 1998205776.

The previous prime is 2331240113. The next prime is 2331240157. The reversal of 2331240121 is 1210421332.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1705690000 + 625550121 = 41300^2 + 25011^2 .

It is not a de Polignac number, because 2331240121 - 2³ = 2331240113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2331220121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23788116 + ... + 23788213.

It is an arithmetic number, because the mean of its divisors is an integer number (451975135).

Almost surely, 2^2331240121 is an apocalyptic number.

It is an amenable number.

2331240121 is a deficient number, since it is larger than the sum of its proper divisors (380610689).

2331240121 is an equidigital number, since it uses as much as digits as its factorization.

2331240121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47576343 (or 47576336 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2331240121 is about 48282.9174864154. The cubic root of 2331240121 is about 1325.9556643706.

Adding to 2331240121 its reverse (1210421332), we get a palindrome (3541661453).

The spelling of 2331240121 in words is "two billion, three hundred thirty-one million, two hundred forty thousand, one hundred twenty-one".