1131033111011 has 8 divisors (see below), whose sum is σ = 1189865343600. Its totient is φ = 1073522951200.

The previous prime is 1131033111001. The next prime is 1131033111023. The reversal of 1131033111011 is 1101113301311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1131033111011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131033111001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330516440 + ... + 330519861.

It is an arithmetic number, because the mean of its divisors is an integer number (148733167950).

Almost surely, 2^{1131033111011} is an apocalyptic number.

1131033111011 is a deficient number, since it is larger than the sum of its proper divisors (58832232589).

1131033111011 is an equidigital number, since it uses as much as digits as its factorization.

1131033111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661036389.

The product of its (nonzero) digits is 27, while the sum is 17.

Adding to 1131033111011 its reverse (1101113301311), we get a palindrome (2232146412322).

The spelling of 1131033111011 in words is "one trillion, one hundred thirty-one billion, thirty-three million, one hundred eleven thousand, eleven".