1050000111091 has 2 divisors, whose sum is σ = 1050000111092. Its totient is φ = 1050000111090.

The previous prime is 1050000111007. The next prime is 1050000111119. The reversal of 1050000111091 is 1901110000501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1050000111091 - 2³¹ = 1047852627443 is a prime.

It is a super-2 number, since 2×1050000111091² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1050000111491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525000055545 + 525000055546.

It is an arithmetic number, because the mean of its divisors is an integer number (525000055546).

Almost surely, 2^{1050000111091} is an apocalyptic number.

1050000111091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1050000111091 is an equidigital number, since it uses as much as digits as its factorization.

1050000111091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45, while the sum is 19.

Adding to 1050000111091 its reverse (1901110000501), we get a palindrome (2951110111592).

The spelling of 1050000111091 in words is "one trillion, fifty billion, one hundred eleven thousand, ninety-one".