1141435231 has 4 divisors (see below), whose sum is σ = 1142563032. Its totient is φ = 1140307432.

The previous prime is 1141435219. The next prime is 1141435277. The reversal of 1141435231 is 1325341411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1325341411 = 307 ⋅4317073.

It is a cyclic number.

It is not a de Polignac number, because 1141435231 - 2⁷ = 1141435103 is a prime.

It is a super-2 number, since 2×1141435231² = 2605748773136046722, 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 = 1141435196 and 1141435205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1141405231) 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, 562381 + ... + 564406.

It is an arithmetic number, because the mean of its divisors is an integer number (285640758).

Almost surely, 2^1141435231 is an apocalyptic number.

1141435231 is a deficient number, since it is larger than the sum of its proper divisors (1127801).

1141435231 is a wasteful number, since it uses less digits than its factorization.

1141435231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1127800.

The product of its digits is 1440, while the sum is 25.

The square root of 1141435231 is about 33785.1332837389. The cubic root of 1141435231 is about 1045.0821363521.

Adding to 1141435231 its reverse (1325341411), we get a palindrome (2466776642).

The spelling of 1141435231 in words is "one billion, one hundred forty-one million, four hundred thirty-five thousand, two hundred thirty-one".