11042132123 has 16 divisors (see below), whose sum is σ = 12575520000. Its totient is φ = 9597408480.

The previous prime is 11042132117. The next prime is 11042132173. The reversal of 11042132123 is 32123124011.

It is a de Polignac number, because none of the positive numbers 2^k-11042132123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11042132095 and 11042132104.

It is not an unprimeable number, because it can be changed into a prime (11042132173) 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, 613253 + ... + 631001.

It is an arithmetic number, because the mean of its divisors is an integer number (785970000).

Almost surely, 2^11042132123 is an apocalyptic number.

11042132123 is a deficient number, since it is larger than the sum of its proper divisors (1533387877).

11042132123 is a wasteful number, since it uses less digits than its factorization.

11042132123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20242.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 11042132123 its reverse (32123124011), we get a palindrome (43165256134).

The spelling of 11042132123 in words is "eleven billion, forty-two million, one hundred thirty-two thousand, one hundred twenty-three".