1100400011 has 2 divisors, whose sum is σ = 1100400012. Its totient is φ = 1100400010.

The previous prime is 1100399999. The next prime is 1100400013. The reversal of 1100400011 is 1100040011.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1100400011 - 2⁶ = 1100399947 is a prime.

Together with 1100400013, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1100400013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550200005 + 550200006.

It is an arithmetic number, because the mean of its divisors is an integer number (550200006).

Almost surely, 2^1100400011 is an apocalyptic number.

1100400011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100400011 is an equidigital number, since it uses as much as digits as its factorization.

1100400011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 1100400011 is about 33172.2777481439. The cubic root of 1100400011 is about 1032.4052285954.

Adding to 1100400011 its reverse (1100040011), we get a palindrome (2200440022).

Subtracting from 1100400011 its reverse (1100040011), we obtain a square (360000 = 600²).

The spelling of 1100400011 in words is "one billion, one hundred million, four hundred thousand, eleven".