1103011121 has 2 divisors, whose sum is σ = 1103011122. Its totient is φ = 1103011120.

The previous prime is 1103011109. The next prime is 1103011127. The reversal of 1103011121 is 1211103011.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 950858896 + 152152225 = 30836^2 + 12335^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1103011121 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1103011127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551505560 + 551505561.

It is an arithmetic number, because the mean of its divisors is an integer number (551505561).

Almost surely, 2^1103011121 is an apocalyptic number.

It is an amenable number.

1103011121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103011121 is an equidigital number, since it uses as much as digits as its factorization.

1103011121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 11.

The square root of 1103011121 is about 33211.6112376380. The cubic root of 1103011121 is about 1033.2211725528.

Adding to 1103011121 its reverse (1211103011), we get a palindrome (2314114132).

It can be divided in two parts, 1103011 and 121, that multiplied together give a palindrome (133464331).

The spelling of 1103011121 in words is "one billion, one hundred three million, eleven thousand, one hundred twenty-one".