11302013001221 has 4 divisors (see below), whose sum is σ = 11691737587500. Its totient is φ = 10912288414944.

The previous prime is 11302013001193. The next prime is 11302013001229. The reversal of 11302013001221 is 12210031020311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2155537830625 + 9146475170596 = 1468175^2 + 3024314^2 .

It is a cyclic number.

It is not a de Polignac number, because 11302013001221 - 2²⁶ = 11301945892357 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11302013001221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11302013001229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194862293096 + ... + 194862293153.

It is an arithmetic number, because the mean of its divisors is an integer number (2922934396875).

Almost surely, 2^{11302013001221} is an apocalyptic number.

It is an amenable number.

11302013001221 is a deficient number, since it is larger than the sum of its proper divisors (389724586279).

11302013001221 is an equidigital number, since it uses as much as digits as its factorization.

11302013001221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389724586278.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11302013001221 its reverse (12210031020311), we get a palindrome (23512044021532).

The spelling of 11302013001221 in words is "eleven trillion, three hundred two billion, thirteen million, one thousand, two hundred twenty-one".