11997143063 has 2 divisors, whose sum is σ = 11997143064. Its totient is φ = 11997143062.

The previous prime is 11997143057. The next prime is 11997143113. The reversal of 11997143063 is 36034179911.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11997143063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11997143363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5998571531 + 5998571532.

It is an arithmetic number, because the mean of its divisors is an integer number (5998571532).

Almost surely, 2^11997143063 is an apocalyptic number.

11997143063 is a deficient number, since it is larger than the sum of its proper divisors (1).

11997143063 is an equidigital number, since it uses as much as digits as its factorization.

11997143063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 122472, while the sum is 44.

The spelling of 11997143063 in words is "eleven billion, nine hundred ninety-seven million, one hundred forty-three thousand, sixty-three".