1143413431 has 4 divisors (see below), whose sum is σ = 1148832664. Its totient is φ = 1137994200.

The previous prime is 1143413423. The next prime is 1143413437. The reversal of 1143413431 is 1343143411.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1343143411 = 89 ⋅15091499.

It is a cyclic number.

It is not a de Polignac number, because 1143413431 - 2³ = 1143413423 is a prime.

It is a super-2 number, since 2×1143413431² = 2614788548382383522, 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 = 1143413396 and 1143413405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143413437) 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, 2709300 + ... + 2709721.

It is an arithmetic number, because the mean of its divisors is an integer number (287208166).

Almost surely, 2^1143413431 is an apocalyptic number.

1143413431 is a deficient number, since it is larger than the sum of its proper divisors (5419233).

1143413431 is an equidigital number, since it uses as much as digits as its factorization.

1143413431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5419232.

The product of its digits is 1728, while the sum is 25.

The square root of 1143413431 is about 33814.3968007711. The cubic root of 1143413431 is about 1045.6855253315.

Adding to 1143413431 its reverse (1343143411), we get a palindrome (2486556842).

The spelling of 1143413431 in words is "one billion, one hundred forty-three million, four hundred thirteen thousand, four hundred thirty-one".