11149561387 has 2 divisors, whose sum is σ = 11149561388. Its totient is φ = 11149561386.

The previous prime is 11149561349. The next prime is 11149561391. The reversal of 11149561387 is 78316594111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11149561387 - 2¹⁵ = 11149528619 is a prime.

It is not a weakly prime, because it can be changed into another prime (11149561327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5574780693 + 5574780694.

It is an arithmetic number, because the mean of its divisors is an integer number (5574780694).

Almost surely, 2^11149561387 is an apocalyptic number.

11149561387 is a deficient number, since it is larger than the sum of its proper divisors (1).

11149561387 is an equidigital number, since it uses as much as digits as its factorization.

11149561387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 46.

The spelling of 11149561387 in words is "eleven billion, one hundred forty-nine million, five hundred sixty-one thousand, three hundred eighty-seven".