11121979342 has 8 divisors (see below), whose sum is σ = 16683486336. Its totient is φ = 5560817232.

The previous prime is 11121979331. The next prime is 11121979397. The reversal of 11121979342 is 24397912111.

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 = 11121979295 and 11121979304.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21138 + ... + 150634.

It is an arithmetic number, because the mean of its divisors is an integer number (2085435792).

Almost surely, 2^11121979342 is an apocalyptic number.

11121979342 is a deficient number, since it is larger than the sum of its proper divisors (5561506994).

11121979342 is a wasteful number, since it uses less digits than its factorization.

11121979342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172442.

The product of its digits is 27216, while the sum is 40.

The spelling of 11121979342 in words is "eleven billion, one hundred twenty-one million, nine hundred seventy-nine thousand, three hundred forty-two".