11213020520450 has 24 divisors (see below), whose sum is σ = 23835677907072. Its totient is φ = 3844464178320.

The previous prime is 11213020520431. The next prime is 11213020520467. The reversal of 11213020520450 is 5402502031211.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16018600394 + ... + 16018601093.

It is an arithmetic number, because the mean of its divisors is an integer number (993153246128).

Almost surely, 2^{11213020520450} is an apocalyptic number.

11213020520450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11213020520450 is an abundant number, since it is smaller than the sum of its proper divisors (12622657386622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11213020520450 is a wasteful number, since it uses less digits than its factorization.

11213020520450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32037201506 (or 32037201501 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 11213020520450 its reverse (5402502031211), we get a palindrome (16615522551661).

The spelling of 11213020520450 in words is "eleven trillion, two hundred thirteen billion, twenty million, five hundred twenty thousand, four hundred fifty".