1105042542491 has 2 divisors, whose sum is σ = 1105042542492. Its totient is φ = 1105042542490.

The previous prime is 1105042542469. The next prime is 1105042542581. The reversal of 1105042542491 is 1942452405011.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1105042542491 - 2³⁰ = 1103968800667 is a prime.

It is a super-2 number, since 2×1105042542491² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1105042542391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552521271245 + 552521271246.

It is an arithmetic number, because the mean of its divisors is an integer number (552521271246).

Almost surely, 2^{1105042542491} is an apocalyptic number.

1105042542491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1105042542491 is an equidigital number, since it uses as much as digits as its factorization.

1105042542491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 57600, while the sum is 38.

The spelling of 1105042542491 in words is "one trillion, one hundred five billion, forty-two million, five hundred forty-two thousand, four hundred ninety-one".