101111111199919 has 2 divisors, whose sum is σ = 101111111199920. Its totient is φ = 101111111199918.

The previous prime is 101111111199883. The next prime is 101111111200031. The reversal of 101111111199919 is 919991111111101.

It is a weak prime.

It is an emirp because it is prime and its reverse (919991111111101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101111111199919 - 2³³ = 101102521265327 is a prime.

It is a super-2 number, since 2×101111111199919² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101111111109919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50555555599959 + 50555555599960.

It is an arithmetic number, because the mean of its divisors is an integer number (50555555599960).

Almost surely, 2^{101111111199919} is an apocalyptic number.

101111111199919 is a deficient number, since it is larger than the sum of its proper divisors (1).

101111111199919 is an equidigital number, since it uses as much as digits as its factorization.

101111111199919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6561, while the sum is 46.

The spelling of 101111111199919 in words is "one hundred one trillion, one hundred eleven billion, one hundred eleven million, one hundred ninety-nine thousand, nine hundred nineteen".