1120011881 has 2 divisors, whose sum is σ = 1120011882. Its totient is φ = 1120011880.

The previous prime is 1120011863. The next prime is 1120011913. The reversal of 1120011881 is 1881100211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1068243856 + 51768025 = 32684^2 + 7195^2 .

It is an emirp because it is prime and its reverse (1881100211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1120011881 - 2¹⁸ = 1119749737 is a prime.

It is a super-2 number, since 2×1120011881² = 2508853227162316322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1120011181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560005940 + 560005941.

It is an arithmetic number, because the mean of its divisors is an integer number (560005941).

Almost surely, 2^1120011881 is an apocalyptic number.

It is an amenable number.

1120011881 is a deficient number, since it is larger than the sum of its proper divisors (1).

1120011881 is an equidigital number, since it uses as much as digits as its factorization.

1120011881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 23.

The square root of 1120011881 is about 33466.5785672811. The cubic root of 1120011881 is about 1038.5024925014.

The spelling of 1120011881 in words is "one billion, one hundred twenty million, eleven thousand, eight hundred eighty-one".