1050105559991 has 2 divisors, whose sum is σ = 1050105559992. Its totient is φ = 1050105559990.

The previous prime is 1050105559949. The next prime is 1050105560039. The reversal of 1050105559991 is 1999555010501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1050105559991 - 2⁶ = 1050105559927 is a prime.

It is a super-2 number, since 2×1050105559991² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1050105559291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525052779995 + 525052779996.

It is an arithmetic number, because the mean of its divisors is an integer number (525052779996).

Almost surely, 2^{1050105559991} is an apocalyptic number.

1050105559991 is a deficient number, since it is larger than the sum of its proper divisors (1).

1050105559991 is an equidigital number, since it uses as much as digits as its factorization.

1050105559991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 455625, while the sum is 50.

The spelling of 1050105559991 in words is "one trillion, fifty billion, one hundred five million, five hundred fifty-nine thousand, nine hundred ninety-one".