1100042311 has 2 divisors, whose sum is σ = 1100042312. Its totient is φ = 1100042310.

The previous prime is 1100042309. The next prime is 1100042327. The reversal of 1100042311 is 1132400011.

It is a weak prime.

It is an emirp because it is prime and its reverse (1132400011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1100042311 - 2¹ = 1100042309 is a prime.

Together with 1100042309, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1100042291 and 1100042300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1100048311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550021155 + 550021156.

It is an arithmetic number, because the mean of its divisors is an integer number (550021156).

Almost surely, 2^1100042311 is an apocalyptic number.

1100042311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100042311 is an equidigital number, since it uses as much as digits as its factorization.

1100042311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1100042311 is about 33166.8857597454. The cubic root of 1100042311 is about 1032.2933506818.

Adding to 1100042311 its reverse (1132400011), we get a palindrome (2232442322).

The spelling of 1100042311 in words is "one billion, one hundred million, forty-two thousand, three hundred eleven".