1131000011 has 2 divisors, whose sum is σ = 1131000012. Its totient is φ = 1131000010.

The previous prime is 1131000007. The next prime is 1131000037. The reversal of 1131000011 is 1100001311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1131000011 - 2² = 1131000007 is a prime.

It is a super-2 number, since 2×1131000011² = 2558322049764000242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1131000811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565500005 + 565500006.

It is an arithmetic number, because the mean of its divisors is an integer number (565500006).

Almost surely, 2^1131000011 is an apocalyptic number.

1131000011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131000011 is an equidigital number, since it uses as much as digits as its factorization.

1131000011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3, while the sum is 8.

The square root of 1131000011 is about 33630.3436051433. The cubic root of 1131000011 is about 1041.8876009608.

Adding to 1131000011 its reverse (1100001311), we get a palindrome (2231001322).

The spelling of 1131000011 in words is "one billion, one hundred thirty-one million, eleven", and thus it is an aban number.