1131113131 has 8 divisors (see below), whose sum is σ = 1153177200. Its totient is φ = 1109145600.

The previous prime is 1131113107. The next prime is 1131113197. The reversal of 1131113131 is 1313111311.

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 1131113131 - 2⁵ = 1131113099 is a prime.

It is a super-2 number, since 2×1131113131² = 2558833830241246322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131123131) 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, 246 + ... + 47563.

It is an arithmetic number, because the mean of its divisors is an integer number (144147150).

Almost surely, 2^1131113131 is an apocalyptic number.

1131113131 is a deficient number, since it is larger than the sum of its proper divisors (22064069).

1131113131 is an equidigital number, since it uses as much as digits as its factorization.

1131113131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48269.

The product of its digits is 27, while the sum is 16.

The square root of 1131113131 is about 33632.0253776070. The cubic root of 1131113131 is about 1041.9223355306.

Adding to 1131113131 its reverse (1313111311), we get a palindrome (2444224442).

It can be divided in two parts, 11311 and 13131, that added together give a palindrome (24442).

The spelling of 1131113131 in words is "one billion, one hundred thirty-one million, one hundred thirteen thousand, one hundred thirty-one".