1105533430121 has 2 divisors, whose sum is σ = 1105533430122. Its totient is φ = 1105533430120.

The previous prime is 1105533430091. The next prime is 1105533430139. The reversal of 1105533430121 is 1210343355011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1101985560025 + 3547870096 = 1049755^2 + 59564^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1105533430121 is a prime.

It is not a weakly prime, because it can be changed into another prime (1105533430181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552766715060 + 552766715061.

It is an arithmetic number, because the mean of its divisors is an integer number (552766715061).

Almost surely, 2^{1105533430121} is an apocalyptic number.

It is an amenable number.

1105533430121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1105533430121 is an equidigital number, since it uses as much as digits as its factorization.

1105533430121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 29.

Adding to 1105533430121 its reverse (1210343355011), we get a palindrome (2315876785132).

The spelling of 1105533430121 in words is "one trillion, one hundred five billion, five hundred thirty-three million, four hundred thirty thousand, one hundred twenty-one".