1131040411 has 4 divisors (see below), whose sum is σ = 1134396952. Its totient is φ = 1127683872.

The previous prime is 1131040373. The next prime is 1131040441. The reversal of 1131040411 is 1140401311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1131040411 - 2¹⁵ = 1131007643 is a prime.

It is a super-2 number, since 2×1131040411² = 2558504822630097842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131040441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1677765 + ... + 1678438.

It is an arithmetic number, because the mean of its divisors is an integer number (283599238).

Almost surely, 2^1131040411 is an apocalyptic number.

1131040411 is a deficient number, since it is larger than the sum of its proper divisors (3356541).

1131040411 is an equidigital number, since it uses as much as digits as its factorization.

1131040411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3356540.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1131040411 is about 33630.9442478203. The cubic root of 1131040411 is about 1041.9000064302.

Adding to 1131040411 its reverse (1140401311), we get a palindrome (2271441722).

The spelling of 1131040411 in words is "one billion, one hundred thirty-one million, forty thousand, four hundred eleven".