1131304444011 has 40 divisors (see below), whose sum is σ = 1931500174560. Its totient is φ = 646425505152.

The previous prime is 1131304443991. The next prime is 1131304444013. The reversal of 1131304444011 is 1104444031311.

It is not a de Polignac number, because 1131304444011 - 2⁹ = 1131304443499 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1131304444013) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 13962805 + ... + 14043593.

It is an arithmetic number, because the mean of its divisors is an integer number (48287504364).

Almost surely, 2^{1131304444011} is an apocalyptic number.

1131304444011 is a deficient number, since it is larger than the sum of its proper divisors (800195730549).

1131304444011 is an equidigital number, since it uses as much as digits as its factorization.

1131304444011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105505 (or 105496 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 1131304444011 its reverse (1104444031311), we get a palindrome (2235748475322).

The spelling of 1131304444011 in words is "one trillion, one hundred thirty-one billion, three hundred four million, four hundred forty-four thousand, eleven".