1143133031 has 4 divisors (see below), whose sum is σ = 1153620600. Its totient is φ = 1132645464.

The previous prime is 1143133003. The next prime is 1143133039. The reversal of 1143133031 is 1303313411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1303313411 = 113 ⋅11533747.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1143133031 is a prime.

It is a super-3 number, since 3×1143133031³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1143132994 and 1143133012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143133039) 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, 5243621 + ... + 5243838.

It is an arithmetic number, because the mean of its divisors is an integer number (288405150).

Almost surely, 2^1143133031 is an apocalyptic number.

1143133031 is a deficient number, since it is larger than the sum of its proper divisors (10487569).

1143133031 is a wasteful number, since it uses less digits than its factorization.

1143133031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10487568.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 1143133031 is about 33810.2503835745. The cubic root of 1143133031 is about 1045.6000403020.

Adding to 1143133031 its reverse (1303313411), we get a palindrome (2446446442).

The spelling of 1143133031 in words is "one billion, one hundred forty-three million, one hundred thirty-three thousand, thirty-one".