11112865857019 has 2 divisors, whose sum is σ = 11112865857020. Its totient is φ = 11112865857018.

The previous prime is 11112865856993. The next prime is 11112865857059. The reversal of 11112865857019 is 91075856821111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11112865857019 - 2¹¹ = 11112865854971 is a prime.

It is a super-2 number, since 2×11112865857019² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11112865857059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5556432928509 + 5556432928510.

It is an arithmetic number, because the mean of its divisors is an integer number (5556432928510).

Almost surely, 2^{11112865857019} is an apocalyptic number.

11112865857019 is a deficient number, since it is larger than the sum of its proper divisors (1).

11112865857019 is an equidigital number, since it uses as much as digits as its factorization.

11112865857019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1209600, while the sum is 55.

The spelling of 11112865857019 in words is "eleven trillion, one hundred twelve billion, eight hundred sixty-five million, eight hundred fifty-seven thousand, nineteen".