1141118531 has 8 divisors (see below), whose sum is σ = 1308252000. Its totient is φ = 975014208.

The previous prime is 1141118509. The next prime is 1141118551. The reversal of 1141118531 is 1358111411.

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

It is not a de Polignac number, because 1141118531 - 2⁶ = 1141118467 is a prime.

It is a super-2 number, since 2×1141118531² = 2604303003583195922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1141118531.

It is not an unprimeable number, because it can be changed into a prime (1141118551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254906 + ... + 259343.

It is an arithmetic number, because the mean of its divisors is an integer number (163531500).

Almost surely, 2^1141118531 is an apocalyptic number.

1141118531 is a deficient number, since it is larger than the sum of its proper divisors (167133469).

1141118531 is an equidigital number, since it uses as much as digits as its factorization.

1141118531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514573.

The product of its digits is 480, while the sum is 26.

The square root of 1141118531 is about 33780.4459858066. The cubic root of 1141118531 is about 1044.9854720476.

Adding to 1141118531 its reverse (1358111411), we get a palindrome (2499229942).

The spelling of 1141118531 in words is "one billion, one hundred forty-one million, one hundred eighteen thousand, five hundred thirty-one".