11011000203123 has 16 divisors (see below), whose sum is σ = 14745159836160. Its totient is φ = 7308763678944.

The previous prime is 11011000203121. The next prime is 11011000203143. The reversal of 11011000203123 is 32130200011011.

It is a happy number.

11011000203123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11011000203123 - 2¹ = 11011000203121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11011000203121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3172965 + ... + 5664777.

It is an arithmetic number, because the mean of its divisors is an integer number (921572489760).

Almost surely, 2^{11011000203123} is an apocalyptic number.

11011000203123 is a deficient number, since it is larger than the sum of its proper divisors (3734159633037).

11011000203123 is a wasteful number, since it uses less digits than its factorization.

11011000203123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2498218.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 11011000203123 its reverse (32130200011011), we get a palindrome (43141200214134).

The spelling of 11011000203123 in words is "eleven trillion, eleven billion, two hundred three thousand, one hundred twenty-three".