1131131301311 has 16 divisors (see below), whose sum is σ = 1250090039808. Its totient is φ = 1014931598400.

The previous prime is 1131131301301. The next prime is 1131131301319. The reversal of 1131131301311 is 1131031311311.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1131131301311 - 2⁶ = 1131131301247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131131301319) 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, 1454150 + ... + 2092083.

It is an arithmetic number, because the mean of its divisors is an integer number (78130627488).

Almost surely, 2^{1131131301311} is an apocalyptic number.

1131131301311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1131131301311 is a deficient number, since it is larger than the sum of its proper divisors (118958738497).

1131131301311 is a wasteful number, since it uses less digits than its factorization.

1131131301311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3546622.

The product of its (nonzero) digits is 81, while the sum is 20.

Adding to 1131131301311 its reverse (1131031311311), we get a palindrome (2262162612622).

The spelling of 1131131301311 in words is "one trillion, one hundred thirty-one billion, one hundred thirty-one million, three hundred one thousand, three hundred eleven".