123311503963 has 2 divisors, whose sum is σ = 123311503964. Its totient is φ = 123311503962.

The previous prime is 123311503961. The next prime is 123311504033. The reversal of 123311503963 is 369305113321.

It is a weak prime.

It is an emirp because it is prime and its reverse (369305113321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123311503963 - 2¹ = 123311503961 is a prime.

Together with 123311503961, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (123311503961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61655751981 + 61655751982.

It is an arithmetic number, because the mean of its divisors is an integer number (61655751982).

Almost surely, 2^123311503963 is an apocalyptic number.

123311503963 is a deficient number, since it is larger than the sum of its proper divisors (1).

123311503963 is an equidigital number, since it uses as much as digits as its factorization.

123311503963 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43740, while the sum is 37.

The spelling of 123311503963 in words is "one hundred twenty-three billion, three hundred eleven million, five hundred three thousand, nine hundred sixty-three".