11000000042 has 8 divisors (see below), whose sum is σ = 17470588356. Its totient is φ = 5176470592.

The previous prime is 11000000021. The next prime is 11000000057. The reversal of 11000000042 is 24000000011.

It can be written as a sum of positive squares in 2 ways, for example, as 9169786081 + 1830213961 = 95759^2 + 42781^2 .

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 = 10999999966 and 11000000029.

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, 161764673 + ... + 161764740.

Almost surely, 2^11000000042 is an apocalyptic number.

11000000042 is a deficient number, since it is larger than the sum of its proper divisors (6470588314).

11000000042 is a wasteful number, since it uses less digits than its factorization.

11000000042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323529432.

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 11000000042 its reverse (24000000011), we get a palindrome (35000000053).

The spelling of 11000000042 in words is "eleven billion, forty-two", and thus it is an aban number and an uban number.