11232109978 has 8 divisors (see below), whose sum is σ = 16848670068. Its totient is φ = 5615886624.

The previous prime is 11232109957. The next prime is 11232109979. The reversal of 11232109978 is 87990123211.

It can be written as a sum of positive squares in 2 ways, for example, as 11180313169 + 51796809 = 105737^2 + 7197^2 .

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

It is not an unprimeable number, because it can be changed into a prime (11232109979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30400 + ... + 152932.

Almost surely, 2^11232109978 is an apocalyptic number.

11232109978 is a deficient number, since it is larger than the sum of its proper divisors (5616560090).

11232109978 is a wasteful number, since it uses less digits than its factorization.

11232109978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168368.

The product of its (nonzero) digits is 54432, while the sum is 43.

The spelling of 11232109978 in words is "eleven billion, two hundred thirty-two million, one hundred nine thousand, nine hundred seventy-eight".