11331021213049 has 2 divisors, whose sum is σ = 11331021213050. Its totient is φ = 11331021213048.

The previous prime is 11331021213023. The next prime is 11331021213073. The reversal of 11331021213049 is 94031212013311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10309621939600 + 1021399273449 = 3210860^2 + 1010643^2 .

It is an emirp because it is prime and its reverse (94031212013311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11331021213049 - 2¹¹ = 11331021211001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11331021213049.

It is not a weakly prime, because it can be changed into another prime (11331021213079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5665510606524 + 5665510606525.

It is an arithmetic number, because the mean of its divisors is an integer number (5665510606525).

Almost surely, 2^{11331021213049} is an apocalyptic number.

It is an amenable number.

11331021213049 is a deficient number, since it is larger than the sum of its proper divisors (1).

11331021213049 is an equidigital number, since it uses as much as digits as its factorization.

11331021213049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 31.

The spelling of 11331021213049 in words is "eleven trillion, three hundred thirty-one billion, twenty-one million, two hundred thirteen thousand, forty-nine".