11103123212042 has 32 divisors (see below), whose sum is σ = 18029170874880. Its totient is φ = 5108263729920.

The previous prime is 11103123212021. The next prime is 11103123212047. The reversal of 11103123212042 is 24021232130111.

It is a junction number, because it is equal to n+sod(n) for n = 11103123211999 and 11103123212017.

It is not an unprimeable number, because it can be changed into a prime (11103123212047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2311709 + ... + 5248832.

It is an arithmetic number, because the mean of its divisors is an integer number (563411589840).

Almost surely, 2^{11103123212042} is an apocalyptic number.

11103123212042 is a deficient number, since it is larger than the sum of its proper divisors (6926047662838).

11103123212042 is a wasteful number, since it uses less digits than its factorization.

11103123212042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7561526.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 11103123212042 its reverse (24021232130111), we get a palindrome (35124355342153).

The spelling of 11103123212042 in words is "eleven trillion, one hundred three billion, one hundred twenty-three million, two hundred twelve thousand, forty-two".