1133387843081 has 4 divisors (see below), whose sum is σ = 1220571523332. Its totient is φ = 1046204162832.

The previous prime is 1133387843059. The next prime is 1133387843087. The reversal of 1133387843081 is 1803487833311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 292049453056 + 841338390025 = 540416^2 + 917245^2 .

It is a cyclic number.

It is not a de Polignac number, because 1133387843081 - 2¹⁰ = 1133387842057 is a prime.

It is a super-2 number, since 2×1133387843081² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1133387843087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43591840106 + ... + 43591840131.

It is an arithmetic number, because the mean of its divisors is an integer number (305142880833).

Almost surely, 2^{1133387843081} is an apocalyptic number.

It is an amenable number.

1133387843081 is a deficient number, since it is larger than the sum of its proper divisors (87183680251).

1133387843081 is an equidigital number, since it uses as much as digits as its factorization.

1133387843081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87183680250.

The product of its (nonzero) digits is 1161216, while the sum is 50.

The spelling of 1133387843081 in words is "one trillion, one hundred thirty-three billion, three hundred eighty-seven million, eight hundred forty-three thousand, eighty-one".