120431443654663 has 2 divisors, whose sum is σ = 120431443654664. Its totient is φ = 120431443654662.

The previous prime is 120431443654661. The next prime is 120431443654693. The reversal of 120431443654663 is 366456344134021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120431443654663 - 2¹ = 120431443654661 is a prime.

Together with 120431443654661, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 120431443654663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120431443654661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60215721827331 + 60215721827332.

It is an arithmetic number, because the mean of its divisors is an integer number (60215721827332).

Almost surely, 2^{120431443654663} is an apocalyptic number.

120431443654663 is a deficient number, since it is larger than the sum of its proper divisors (1).

120431443654663 is an equidigital number, since it uses as much as digits as its factorization.

120431443654663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14929920, while the sum is 52.

Adding to 120431443654663 its reverse (366456344134021), we get a palindrome (486887787788684).

The spelling of 120431443654663 in words is "one hundred twenty trillion, four hundred thirty-one billion, four hundred forty-three million, six hundred fifty-four thousand, six hundred sixty-three".