1131044636611 has 8 divisors (see below), whose sum is σ = 1149271709264. Its totient is φ = 1112857146720.

The previous prime is 1131044636551. The next prime is 1131044636627. The reversal of 1131044636611 is 1166364401311.

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-1131044636611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131044631611) 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, 9838080 + ... + 9952381.

It is an arithmetic number, because the mean of its divisors is an integer number (143658963658).

Almost surely, 2^{1131044636611} is an apocalyptic number.

1131044636611 is a deficient number, since it is larger than the sum of its proper divisors (18227072653).

1131044636611 is an equidigital number, since it uses as much as digits as its factorization.

1131044636611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19791381.

The product of its (nonzero) digits is 31104, while the sum is 37.

The spelling of 1131044636611 in words is "one trillion, one hundred thirty-one billion, forty-four million, six hundred thirty-six thousand, six hundred eleven".