1131111103441 has 16 divisors (see below), whose sum is σ = 1301897318400. Its totient is φ = 971902357200.

The previous prime is 1131111103433. The next prime is 1131111103561. The reversal of 1131111103441 is 1443011111311.

It is a cyclic number.

It is not a de Polignac number, because 1131111103441 - 2³ = 1131111103433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131111103411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6188361 + ... + 6368518.

It is an arithmetic number, because the mean of its divisors is an integer number (81368582400).

Almost surely, 2^{1131111103441} is an apocalyptic number.

1131111103441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1131111103441 is a deficient number, since it is larger than the sum of its proper divisors (170786214959).

1131111103441 is a wasteful number, since it uses less digits than its factorization.

1131111103441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12557340.

The product of its (nonzero) digits is 144, while the sum is 22.

Adding to 1131111103441 its reverse (1443011111311), we get a palindrome (2574122214752).

The spelling of 1131111103441 in words is "one trillion, one hundred thirty-one billion, one hundred eleven million, one hundred three thousand, four hundred forty-one".