1103334115921 has 2 divisors, whose sum is σ = 1103334115922. Its totient is φ = 1103334115920.

The previous prime is 1103334115909. The next prime is 1103334115981. The reversal of 1103334115921 is 1295114333011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1034362225296 + 68971890625 = 1017036^2 + 262625^2 .

It is a cyclic number.

It is not a de Polignac number, because 1103334115921 - 2³⁵ = 1068974377553 is a prime.

It is not a weakly prime, because it can be changed into another prime (1103334115981) 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, 551667057960 + 551667057961.

It is an arithmetic number, because the mean of its divisors is an integer number (551667057961).

Almost surely, 2^{1103334115921} is an apocalyptic number.

It is an amenable number.

1103334115921 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103334115921 is an equidigital number, since it uses as much as digits as its factorization.

1103334115921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 34.

Adding to 1103334115921 its reverse (1295114333011), we get a palindrome (2398448448932).

The spelling of 1103334115921 in words is "one trillion, one hundred three billion, three hundred thirty-four million, one hundred fifteen thousand, nine hundred twenty-one".