11115142078519 has 2 divisors, whose sum is σ = 11115142078520. Its totient is φ = 11115142078518.

The previous prime is 11115142078517. The next prime is 11115142078553. The reversal of 11115142078519 is 91587024151111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11115142078519 - 2¹ = 11115142078517 is a prime.

It is a super-2 number, since 2×11115142078519² (a number of 27 digits) contains 22 as substring.

Together with 11115142078517, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11115142078517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5557571039259 + 5557571039260.

It is an arithmetic number, because the mean of its divisors is an integer number (5557571039260).

Almost surely, 2^{11115142078519} is an apocalyptic number.

11115142078519 is a deficient number, since it is larger than the sum of its proper divisors (1).

11115142078519 is an equidigital number, since it uses as much as digits as its factorization.

11115142078519 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 100800, while the sum is 46.

The spelling of 11115142078519 in words is "eleven trillion, one hundred fifteen billion, one hundred forty-two million, seventy-eight thousand, five hundred nineteen".