2431545240121 has 2 divisors, whose sum is σ = 2431545240122. Its totient is φ = 2431545240120.

The previous prime is 2431545240109. The next prime is 2431545240203. The reversal of 2431545240121 is 1210425451342.

2431545240121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2201083796025 + 230461444096 = 1483605^2 + 480064^2 .

It is a cyclic number.

It is not a de Polignac number, because 2431545240121 - 2⁷ = 2431545239993 is a prime.

It is not a weakly prime, because it can be changed into another prime (2431545240821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1215772620060 + 1215772620061.

It is an arithmetic number, because the mean of its divisors is an integer number (1215772620061).

Almost surely, 2^{2431545240121} is an apocalyptic number.

It is an amenable number.

2431545240121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2431545240121 is an equidigital number, since it uses as much as digits as its factorization.

2431545240121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38400, while the sum is 34.

The spelling of 2431545240121 in words is "two trillion, four hundred thirty-one billion, five hundred forty-five million, two hundred forty thousand, one hundred twenty-one".