2431338643 has 2 divisors, whose sum is σ = 2431338644. Its totient is φ = 2431338642.

The previous prime is 2431338601. The next prime is 2431338653. The reversal of 2431338643 is 3468331342.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2431338643 - 2⁹ = 2431338131 is a prime.

It is a super-2 number, since 2×2431338643² = 11822815193890162898, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2431338653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1215669321 + 1215669322.

It is an arithmetic number, because the mean of its divisors is an integer number (1215669322).

Almost surely, 2^2431338643 is an apocalyptic number.

2431338643 is a deficient number, since it is larger than the sum of its proper divisors (1).

2431338643 is an equidigital number, since it uses as much as digits as its factorization.

2431338643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 37.

The square root of 2431338643 is about 49308.6061757986. The cubic root of 2431338643 is about 1344.6682511215.

Adding to 2431338643 its reverse (3468331342), we get a palindrome (5899669985).

The spelling of 2431338643 in words is "two billion, four hundred thirty-one million, three hundred thirty-eight thousand, six hundred forty-three".