11221321243103 has 4 divisors (see below), whose sum is σ = 11222406802560. Its totient is φ = 11220235683648.

The previous prime is 11221321243049. The next prime is 11221321243123. The reversal of 11221321243103 is 30134212312211.

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

It is a cyclic number.

It is not a de Polignac number, because 11221321243103 - 2⁶ = 11221321243039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221321243123) 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, 542764223 + ... + 542784896.

It is an arithmetic number, because the mean of its divisors is an integer number (2805601700640).

Almost surely, 2^{11221321243103} is an apocalyptic number.

11221321243103 is a deficient number, since it is larger than the sum of its proper divisors (1085559457).

11221321243103 is a wasteful number, since it uses less digits than its factorization.

11221321243103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1085559456.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 11221321243103 its reverse (30134212312211), we get a palindrome (41355533555314).

The spelling of 11221321243103 in words is "eleven trillion, two hundred twenty-one billion, three hundred twenty-one million, two hundred forty-three thousand, one hundred three".