1101123043 has 2 divisors, whose sum is σ = 1101123044. Its totient is φ = 1101123042.

The previous prime is 1101123013. The next prime is 1101123047. The reversal of 1101123043 is 3403211011.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1101123043 - 2⁹ = 1101122531 is a prime.

It is not a weakly prime, because it can be changed into another prime (1101123047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550561521 + 550561522.

It is an arithmetic number, because the mean of its divisors is an integer number (550561522).

Almost surely, 2^1101123043 is an apocalyptic number.

1101123043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101123043 is an equidigital number, since it uses as much as digits as its factorization.

1101123043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1101123043 is about 33183.1740947125. The cubic root of 1101123043 is about 1032.6312974729.

Adding to 1101123043 its reverse (3403211011), we get a palindrome (4504334054).

The spelling of 1101123043 in words is "one billion, one hundred one million, one hundred twenty-three thousand, forty-three".