1131301143 has 24 divisors (see below), whose sum is σ = 1870109696. Its totient is φ = 645570000.

The previous prime is 1131301133. The next prime is 1131301169. The reversal of 1131301143 is 3411031311.

It is not a de Polignac number, because 1131301143 - 2⁶ = 1131301079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131301103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35358 + ... + 59268.

Almost surely, 2^1131301143 is an apocalyptic number.

1131301143 is a deficient number, since it is larger than the sum of its proper divisors (738808553).

1131301143 is a wasteful number, since it uses less digits than its factorization.

1131301143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24675 (or 24672 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 1131301143 is about 33634.8203949419. The cubic root of 1131301143 is about 1041.9800612771.

Adding to 1131301143 its reverse (3411031311), we get a palindrome (4542332454).

The spelling of 1131301143 in words is "one billion, one hundred thirty-one million, three hundred one thousand, one hundred forty-three".