1133130431 has 4 divisors (see below), whose sum is σ = 1133491392. Its totient is φ = 1132769472.

The previous prime is 1133130421. The next prime is 1133130433. The reversal of 1133130431 is 1340313311.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1133130431 is a prime.

It is a super-2 number, since 2×1133130431² = 2567969147316491522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1133130433) 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, 175730 + ... + 182063.

It is an arithmetic number, because the mean of its divisors is an integer number (283372848).

Almost surely, 2^1133130431 is an apocalyptic number.

1133130431 is a deficient number, since it is larger than the sum of its proper divisors (360961).

1133130431 is an equidigital number, since it uses as much as digits as its factorization.

1133130431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360960.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 1133130431 is about 33662.0027776126. The cubic root of 1133130431 is about 1042.5413781267.

Adding to 1133130431 its reverse (1340313311), we get a palindrome (2473443742).

The spelling of 1133130431 in words is "one billion, one hundred thirty-three million, one hundred thirty thousand, four hundred thirty-one".