2431121311 has 2 divisors, whose sum is σ = 2431121312. Its totient is φ = 2431121310.

The previous prime is 2431121299. The next prime is 2431121351. The reversal of 2431121311 is 1131211342.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2431121311 - 2⁵ = 2431121279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2431121351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1215560655 + 1215560656.

It is an arithmetic number, because the mean of its divisors is an integer number (1215560656).

Almost surely, 2^2431121311 is an apocalyptic number.

2431121311 is a deficient number, since it is larger than the sum of its proper divisors (1).

2431121311 is an equidigital number, since it uses as much as digits as its factorization.

2431121311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144, while the sum is 19.

The square root of 2431121311 is about 49306.4023327600. The cubic root of 2431121311 is about 1344.6281842844.

Adding to 2431121311 its reverse (1131211342), we get a palindrome (3562332653).

The spelling of 2431121311 in words is "two billion, four hundred thirty-one million, one hundred twenty-one thousand, three hundred eleven".