11042343123 has 16 divisors (see below), whose sum is σ = 16827943680. Its totient is φ = 6309341856.

The previous prime is 11042343121. The next prime is 11042343161. The reversal of 11042343123 is 32134324011.

It is a happy number.

It is not a de Polignac number, because 11042343123 - 2¹ = 11042343121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11042343093 and 11042343102.

It is not an unprimeable number, because it can be changed into a prime (11042343121) 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, 357873 + ... + 387501.

It is an arithmetic number, because the mean of its divisors is an integer number (1051746480).

Almost surely, 2^11042343123 is an apocalyptic number.

11042343123 is a deficient number, since it is larger than the sum of its proper divisors (5785600557).

11042343123 is a wasteful number, since it uses less digits than its factorization.

11042343123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47386.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 11042343123 its reverse (32134324011), we get a palindrome (43176667134).

The spelling of 11042343123 in words is "eleven billion, forty-two million, three hundred forty-three thousand, one hundred twenty-three".