1135043431 has 4 divisors (see below), whose sum is σ = 1136842864. Its totient is φ = 1133244000.

The previous prime is 1135043419. The next prime is 1135043447. The reversal of 1135043431 is 1343405311.

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-1135043431 is a prime.

It is a super-2 number, since 2×1135043431² = 2576647180512503522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1135043396 and 1135043405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1135043411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 898770 + ... + 900031.

It is an arithmetic number, because the mean of its divisors is an integer number (284210716).

Almost surely, 2^1135043431 is an apocalyptic number.

1135043431 is a deficient number, since it is larger than the sum of its proper divisors (1799433).

1135043431 is an equidigital number, since it uses as much as digits as its factorization.

1135043431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1799432.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 1135043431 is about 33690.4056223727. The cubic root of 1135043431 is about 1043.1277361544.

Adding to 1135043431 its reverse (1343405311), we get a palindrome (2478448742).

The spelling of 1135043431 in words is "one billion, one hundred thirty-five million, forty-three thousand, four hundred thirty-one".