1121103311 has 2 divisors, whose sum is σ = 1121103312. Its totient is φ = 1121103310.

The previous prime is 1121103281. The next prime is 1121103331. The reversal of 1121103311 is 1133011211.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1121103311 - 2²² = 1116909007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121103331) 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, 560551655 + 560551656.

It is an arithmetic number, because the mean of its divisors is an integer number (560551656).

Almost surely, 2^1121103311 is an apocalyptic number.

1121103311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121103311 is an equidigital number, since it uses as much as digits as its factorization.

1121103311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 1121103311 is about 33482.8808647046. The cubic root of 1121103311 is about 1038.8397165428.

Adding to 1121103311 its reverse (1133011211), we get a palindrome (2254114522).

The spelling of 1121103311 in words is "one billion, one hundred twenty-one million, one hundred three thousand, three hundred eleven".