1131411013 has 12 divisors (see below), whose sum is σ = 1218366340. Its totient is φ = 1050250752.

The previous prime is 1131411011. The next prime is 1131411023. The reversal of 1131411013 is 3101141311.

It can be written as a sum of positive squares in 6 ways, for example, as 366224769 + 765186244 = 19137^2 + 27662^2 .

It is not a de Polignac number, because 1131411013 - 2¹ = 1131411011 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 (1131411011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5718 + ... + 47911.

Almost surely, 2^1131411013 is an apocalyptic number.

It is an amenable number.

1131411013 is a deficient number, since it is larger than the sum of its proper divisors (86955327).

1131411013 is an equidigital number, since it uses as much as digits as its factorization.

1131411013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53736 (or 53719 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 1131411013 is about 33636.4536329263. The cubic root of 1131411013 is about 1042.0137919491.

Adding to 1131411013 its reverse (3101141311), we get a palindrome (4232552324).

The spelling of 1131411013 in words is "one billion, one hundred thirty-one million, four hundred eleven thousand, thirteen".