1109201011 has 2 divisors, whose sum is σ = 1109201012. Its totient is φ = 1109201010.

The previous prime is 1109200993. The next prime is 1109201021. The reversal of 1109201011 is 1101029011.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1109201011 - 2¹⁵ = 1109168243 is a prime.

It is not a weakly prime, because it can be changed into another prime (1109201021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 554600505 + 554600506.

It is an arithmetic number, because the mean of its divisors is an integer number (554600506).

Almost surely, 2^1109201011 is an apocalyptic number.

1109201011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1109201011 is an equidigital number, since it uses as much as digits as its factorization.

1109201011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 16.

The square root of 1109201011 is about 33304.6695074429. The cubic root of 1109201011 is about 1035.1503157101.

The spelling of 1109201011 in words is "one billion, one hundred nine million, two hundred one thousand, eleven".