1105111229 has 2 divisors, whose sum is σ = 1105111230. Its totient is φ = 1105111228.

The previous prime is 1105111187. The next prime is 1105111261. The reversal of 1105111229 is 9221115011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 552955225 + 552156004 = 23515^2 + 23498^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1105111229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1105114229) 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 as a sum of consecutive naturals, namely, 552555614 + 552555615.

It is an arithmetic number, because the mean of its divisors is an integer number (552555615).

Almost surely, 2^1105111229 is an apocalyptic number.

It is an amenable number.

1105111229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1105111229 is an equidigital number, since it uses as much as digits as its factorization.

1105111229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 23.

The square root of 1105111229 is about 33243.2132772992. The cubic root of 1105111229 is about 1033.8764999961.

The spelling of 1105111229 in words is "one billion, one hundred five million, one hundred eleven thousand, two hundred twenty-nine".