11011203132121 has 2 divisors, whose sum is σ = 11011203132122. Its totient is φ = 11011203132120.

The previous prime is 11011203132079. The next prime is 11011203132133. The reversal of 11011203132121 is 12123130211011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8540632174096 + 2470570958025 = 2922436^2 + 1571805^2 .

It is a cyclic number.

It is not a de Polignac number, because 11011203132121 - 2¹¹ = 11011203130073 is a prime.

It is not a weakly prime, because it can be changed into another prime (11011203136121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505601566060 + 5505601566061.

It is an arithmetic number, because the mean of its divisors is an integer number (5505601566061).

Almost surely, 2^{11011203132121} is an apocalyptic number.

It is an amenable number.

11011203132121 is a deficient number, since it is larger than the sum of its proper divisors (1).

11011203132121 is an equidigital number, since it uses as much as digits as its factorization.

11011203132121 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 19.

Adding to 11011203132121 its reverse (12123130211011), we get a palindrome (23134333343132).

The spelling of 11011203132121 in words is "eleven trillion, eleven billion, two hundred three million, one hundred thirty-two thousand, one hundred twenty-one".