11388117529 has 2 divisors, whose sum is σ = 11388117530. Its totient is φ = 11388117528.

The previous prime is 11388117523. The next prime is 11388117563. The reversal of 11388117529 is 92571188311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11295438400 + 92679129 = 106280^2 + 9627^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11388117529 is a prime.

It is not a weakly prime, because it can be changed into another prime (11388117523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5694058764 + 5694058765.

It is an arithmetic number, because the mean of its divisors is an integer number (5694058765).

Almost surely, 2^11388117529 is an apocalyptic number.

It is an amenable number.

11388117529 is a deficient number, since it is larger than the sum of its proper divisors (1).

11388117529 is an equidigital number, since it uses as much as digits as its factorization.

11388117529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 46.

The spelling of 11388117529 in words is "eleven billion, three hundred eighty-eight million, one hundred seventeen thousand, five hundred twenty-nine".