1131033131 has 8 divisors (see below), whose sum is σ = 1169963760. Its totient is φ = 1092542688.

The previous prime is 1131033107. The next prime is 1131033139. The reversal of 1131033131 is 1313301311.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1131033131 is a prime.

It is a super-2 number, since 2×1131033131² = 2558471886839326322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131033139) 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, 104816 + ... + 115101.

It is an arithmetic number, because the mean of its divisors is an integer number (146245470).

Almost surely, 2^1131033131 is an apocalyptic number.

1131033131 is a deficient number, since it is larger than the sum of its proper divisors (38930629).

1131033131 is a wasteful number, since it uses less digits than its factorization.

1131033131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220093.

The product of its (nonzero) digits is 81, while the sum is 17.

The square root of 1131033131 is about 33630.8360139917. The cubic root of 1131033131 is about 1041.8977710110.

Adding to 1131033131 its reverse (1313301311), we get a palindrome (2444334442).

The spelling of 1131033131 in words is "one billion, one hundred thirty-one million, thirty-three thousand, one hundred thirty-one".