101111448809551 has 2 divisors, whose sum is σ = 101111448809552. Its totient is φ = 101111448809550.

The previous prime is 101111448809509. The next prime is 101111448809617. The reversal of 101111448809551 is 155908844111101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101111448809551 - 2²⁷ = 101111314591823 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101111448809495 and 101111448809504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101111448801551) 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, 50555724404775 + 50555724404776.

It is an arithmetic number, because the mean of its divisors is an integer number (50555724404776).

Almost surely, 2^{101111448809551} is an apocalyptic number.

101111448809551 is a deficient number, since it is larger than the sum of its proper divisors (1).

101111448809551 is an equidigital number, since it uses as much as digits as its factorization.

101111448809551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 230400, while the sum is 49.

The spelling of 101111448809551 in words is "one hundred one trillion, one hundred eleven billion, four hundred forty-eight million, eight hundred nine thousand, five hundred fifty-one".