1135442031 has 4 divisors (see below), whose sum is σ = 1513922712. Its totient is φ = 756961352.

The previous prime is 1135442023. The next prime is 1135442041. The reversal of 1135442031 is 1302445311.

It is a happy number.

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 1135442031 - 2³ = 1135442023 is a prime.

It is a super-2 number, since 2×1135442031² = 2578457211522809922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1135441992 and 1135442010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1135442041) 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, 189240336 + ... + 189240341.

It is an arithmetic number, because the mean of its divisors is an integer number (378480678).

Almost surely, 2^1135442031 is an apocalyptic number.

1135442031 is a deficient number, since it is larger than the sum of its proper divisors (378480681).

1135442031 is an equidigital number, since it uses as much as digits as its factorization.

1135442031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378480680.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1135442031 is about 33696.3207338724. The cubic root of 1135442031 is about 1043.2498290018.

Adding to 1135442031 its reverse (1302445311), we get a palindrome (2437887342).

The spelling of 1135442031 in words is "one billion, one hundred thirty-five million, four hundred forty-two thousand, thirty-one".