11611057387 has 2 divisors, whose sum is σ = 11611057388. Its totient is φ = 11611057386.

The previous prime is 11611057253. The next prime is 11611057399. The reversal of 11611057387 is 78375011611.

It is a happy number.

11611057387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11611057387 - 2³¹ = 9463573739 is a prime.

It is not a weakly prime, because it can be changed into another prime (11611057487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5805528693 + 5805528694.

It is an arithmetic number, because the mean of its divisors is an integer number (5805528694).

Almost surely, 2^11611057387 is an apocalyptic number.

11611057387 is a deficient number, since it is larger than the sum of its proper divisors (1).

11611057387 is an equidigital number, since it uses as much as digits as its factorization.

11611057387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35280, while the sum is 40.

Adding to 11611057387 its reverse (78375011611), we get a palindrome (89986068998).

The spelling of 11611057387 in words is "eleven billion, six hundred eleven million, fifty-seven thousand, three hundred eighty-seven".