1331115143 has 8 divisors (see below), whose sum is σ = 1367978976. Its totient is φ = 1294460800.

The previous prime is 1331115131. The next prime is 1331115151. The reversal of 1331115143 is 3415111331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1331115143 - 2²⁰ = 1330066567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331115103) 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 7 ways as a sum of consecutive naturals, for example, 39446 + ... + 64947.

It is an arithmetic number, because the mean of its divisors is an integer number (170997372).

Almost surely, 2^1331115143 is an apocalyptic number.

1331115143 is a deficient number, since it is larger than the sum of its proper divisors (36863833).

1331115143 is a wasteful number, since it uses less digits than its factorization.

1331115143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104745.

The product of its digits is 540, while the sum is 23.

The square root of 1331115143 is about 36484.4507016345. The cubic root of 1331115143 is about 1100.0317189201.

Adding to 1331115143 its reverse (3415111331), we get a palindrome (4746226474).

The spelling of 1331115143 in words is "one billion, three hundred thirty-one million, one hundred fifteen thousand, one hundred forty-three".