11213404354503 has 256 divisors, whose sum is σ = 19857629675520. Its totient is φ = 6194813644800.

The previous prime is 11213404354487. The next prime is 11213404354547. The reversal of 11213404354503 is 30545340431211.

11213404354503 is a `hidden beast` number, since 1 + 1 + 21 + 3 + 40 + 43 + 54 + 503 = 666.

It is not a de Polignac number, because 11213404354503 - 2⁴ = 11213404354487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11213404354403) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 1775112301 + ... + 1775118617.

It is an arithmetic number, because the mean of its divisors is an integer number (77568865920).

Almost surely, 2^{11213404354503} is an apocalyptic number.

11213404354503 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11213404354503 is a deficient number, since it is larger than the sum of its proper divisors (8644225321017).

11213404354503 is a wasteful number, since it uses less digits than its factorization.

11213404354503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6607 (or 6601 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 11213404354503 its reverse (30545340431211), we get a palindrome (41758744785714).

The spelling of 11213404354503 in words is "eleven trillion, two hundred thirteen billion, four hundred four million, three hundred fifty-four thousand, five hundred three".