11503135639 has 2 divisors, whose sum is σ = 11503135640. Its totient is φ = 11503135638.

The previous prime is 11503135543. The next prime is 11503135661. The reversal of 11503135639 is 93653130511.

It is a strong prime.

It is an emirp because it is prime and its reverse (93653130511) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11503135639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11503135598 and 11503135607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11503135339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5751567819 + 5751567820.

It is an arithmetic number, because the mean of its divisors is an integer number (5751567820).

Almost surely, 2^11503135639 is an apocalyptic number.

11503135639 is a deficient number, since it is larger than the sum of its proper divisors (1).

11503135639 is an equidigital number, since it uses as much as digits as its factorization.

11503135639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36450, while the sum is 37.

The spelling of 11503135639 in words is "eleven billion, five hundred three million, one hundred thirty-five thousand, six hundred thirty-nine".