11203405515042 has 32 divisors (see below), whose sum is σ = 25549847874432. Its totient is φ = 3244425126144.

The previous prime is 11203405515031. The next prime is 11203405515061. The reversal of 11203405515042 is 24051550430211.

It is a junction number, because it is equal to n+sod(n) for n = 11203405514994 and 11203405515012.

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 15 ways as a sum of consecutive naturals, for example, 4224510558 + ... + 4224513209.

It is an arithmetic number, because the mean of its divisors is an integer number (798432746076).

Almost surely, 2^{11203405515042} is an apocalyptic number.

11203405515042 is an abundant number, since it is smaller than the sum of its proper divisors (14346442359390).

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

11203405515042 is a wasteful number, since it uses less digits than its factorization.

11203405515042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8449023802.

The product of its (nonzero) digits is 24000, while the sum is 33.

Adding to 11203405515042 its reverse (24051550430211), we get a palindrome (35254955945253).

The spelling of 11203405515042 in words is "eleven trillion, two hundred three billion, four hundred five million, five hundred fifteen thousand, forty-two".