11159147731 has 2 divisors, whose sum is σ = 11159147732. Its totient is φ = 11159147730.

The previous prime is 11159147641. The next prime is 11159147737. The reversal of 11159147731 is 13774195111.

It is a strong prime.

It is an emirp because it is prime and its reverse (13774195111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11159147731 - 2¹⁵ = 11159114963 is a prime.

It is a super-3 number, since 3×11159147731³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (11159147737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5579573865 + 5579573866.

It is an arithmetic number, because the mean of its divisors is an integer number (5579573866).

Almost surely, 2^11159147731 is an apocalyptic number.

11159147731 is a deficient number, since it is larger than the sum of its proper divisors (1).

11159147731 is an equidigital number, since it uses as much as digits as its factorization.

11159147731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26460, while the sum is 40.

The spelling of 11159147731 in words is "eleven billion, one hundred fifty-nine million, one hundred forty-seven thousand, seven hundred thirty-one".