1131031411 has 12 divisors (see below), whose sum is σ = 1198778400. Its totient is φ = 1066938768.

The previous prime is 1131031397. The next prime is 1131031423. The reversal of 1131031411 is 1141301311.

It is not a de Polignac number, because 1131031411 - 2⁷ = 1131031283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1131031441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79725 + ... + 92833.

It is an arithmetic number, because the mean of its divisors is an integer number (99898200).

Almost surely, 2^1131031411 is an apocalyptic number.

1131031411 is a deficient number, since it is larger than the sum of its proper divisors (67746989).

1131031411 is a wasteful number, since it uses less digits than its factorization.

1131031411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13386 (or 13367 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 1131031411 is about 33630.8104422121. The cubic root of 1131031411 is about 1041.8972428611.

Adding to 1131031411 its reverse (1141301311), we get a palindrome (2272332722).

The spelling of 1131031411 in words is "one billion, one hundred thirty-one million, thirty-one thousand, four hundred eleven".