11013231333121 has 2 divisors, whose sum is σ = 11013231333122. Its totient is φ = 11013231333120.

The previous prime is 11013231333113. The next prime is 11013231333197. The reversal of 11013231333121 is 12133313231011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8565508502721 + 2447722830400 = 2926689^2 + 1564520^2 .

It is a cyclic number.

It is not a de Polignac number, because 11013231333121 - 2³ = 11013231333113 is a prime.

It is not a weakly prime, because it can be changed into another prime (11013231333521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5506615666560 + 5506615666561.

It is an arithmetic number, because the mean of its divisors is an integer number (5506615666561).

Almost surely, 2^{11013231333121} is an apocalyptic number.

It is an amenable number.

11013231333121 is a deficient number, since it is larger than the sum of its proper divisors (1).

11013231333121 is an equidigital number, since it uses as much as digits as its factorization.

11013231333121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 11013231333121 its reverse (12133313231011), we get a palindrome (23146544564132).

The spelling of 11013231333121 in words is "eleven trillion, thirteen billion, two hundred thirty-one million, three hundred thirty-three thousand, one hundred twenty-one".