20431343411363 has 2 divisors, whose sum is σ = 20431343411364. Its totient is φ = 20431343411362.

The previous prime is 20431343411293. The next prime is 20431343411387. The reversal of 20431343411363 is 36311434313402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20431343411363 - 2²⁸ = 20431074975907 is a prime.

It is not a weakly prime, because it can be changed into another prime (20431343411393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10215671705681 + 10215671705682.

It is an arithmetic number, because the mean of its divisors is an integer number (10215671705682).

Almost surely, 2^{20431343411363} is an apocalyptic number.

20431343411363 is a deficient number, since it is larger than the sum of its proper divisors (1).

20431343411363 is an equidigital number, since it uses as much as digits as its factorization.

20431343411363 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 38.

Adding to 20431343411363 its reverse (36311434313402), we get a palindrome (56742777724765).

The spelling of 20431343411363 in words is "twenty trillion, four hundred thirty-one billion, three hundred forty-three million, four hundred eleven thousand, three hundred sixty-three".