1130311111 has 2 divisors, whose sum is σ = 1130311112. Its totient is φ = 1130311110.

The previous prime is 1130311097. The next prime is 1130311123. The reversal of 1130311111 is 1111130311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1130311111 - 2¹⁷ = 1130180039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1130311091 and 1130311100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1130311211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565155555 + 565155556.

It is an arithmetic number, because the mean of its divisors is an integer number (565155556).

Almost surely, 2^1130311111 is an apocalyptic number.

1130311111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1130311111 is an equidigital number, since it uses as much as digits as its factorization.

1130311111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9, while the sum is 13.

The square root of 1130311111 is about 33620.0998065146. The cubic root of 1130311111 is about 1041.6760176597.

Adding to 1130311111 its reverse (1111130311), we get a palindrome (2241441422).

It can be divided in two parts, 1130311 and 111, that multiplied together give a palindrome (125464521).

The spelling of 1130311111 in words is "one billion, one hundred thirty million, three hundred eleven thousand, one hundred eleven".