11051405504203 has 4 divisors (see below), whose sum is σ = 11216351855080. Its totient is φ = 10886459153328.

The previous prime is 11051405504197. The next prime is 11051405504303. The reversal of 11051405504203 is 30240550415011.

11051405504203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11051405504203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11051405504303) 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, 82473175338 + ... + 82473175471.

It is an arithmetic number, because the mean of its divisors is an integer number (2804087963770).

Almost surely, 2^{11051405504203} is an apocalyptic number.

11051405504203 is a deficient number, since it is larger than the sum of its proper divisors (164946350877).

11051405504203 is an equidigital number, since it uses as much as digits as its factorization.

11051405504203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164946350876.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 11051405504203 its reverse (30240550415011), we get a palindrome (41291955919214).

The spelling of 11051405504203 in words is "eleven trillion, fifty-one billion, four hundred five million, five hundred four thousand, two hundred three".