11123451842 has 8 divisors (see below), whose sum is σ = 16721216256. Its totient is φ = 5549713092.

The previous prime is 11123451799. The next prime is 11123451881. The reversal of 11123451842 is 24815432111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 11123451799 and 11123451808.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6005258 + ... + 6007109.

It is an arithmetic number, because the mean of its divisors is an integer number (2090152032).

Almost surely, 2^11123451842 is an apocalyptic number.

11123451842 is a deficient number, since it is larger than the sum of its proper divisors (5597764414).

11123451842 is a wasteful number, since it uses less digits than its factorization.

11123451842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12012832.

The product of its digits is 7680, while the sum is 32.

Adding to 11123451842 its reverse (24815432111), we get a palindrome (35938883953).

The spelling of 11123451842 in words is "eleven billion, one hundred twenty-three million, four hundred fifty-one thousand, eight hundred forty-two".