1132431031 has 4 divisors (see below), whose sum is σ = 1133435200. Its totient is φ = 1131426864.

The previous prime is 1132431017. The next prime is 1132431071. The reversal of 1132431031 is 1301342311.

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 1132431031 - 2²⁷ = 998213303 is a prime.

It is a super-2 number, since 2×1132431031² = 2564800079943445922, 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 (1132431011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 500391 + ... + 502648.

It is an arithmetic number, because the mean of its divisors is an integer number (283358800).

Almost surely, 2^1132431031 is an apocalyptic number.

1132431031 is a deficient number, since it is larger than the sum of its proper divisors (1004169).

1132431031 is a wasteful number, since it uses less digits than its factorization.

1132431031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004168.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1132431031 is about 33651.6126062333. The cubic root of 1132431031 is about 1042.3268386852.

Adding to 1132431031 its reverse (1301342311), we get a palindrome (2433773342).

The spelling of 1132431031 in words is "one billion, one hundred thirty-two million, four hundred thirty-one thousand, thirty-one".