12119917940 has 24 divisors (see below), whose sum is σ = 27409661160. Its totient is φ = 4475046528.

The previous prime is 12119917939. The next prime is 12119917991. The reversal of 12119917940 is 4971991121.

12119917940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 702568036 + 11417349904 = 26506^2 + 106852^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12119917891 and 12119917900.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23307275 + ... + 23307794.

It is an arithmetic number, because the mean of its divisors is an integer number (1142069215).

Almost surely, 2^12119917940 is an apocalyptic number.

12119917940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12119917940 is an abundant number, since it is smaller than the sum of its proper divisors (15289743220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12119917940 is a wasteful number, since it uses less digits than its factorization.

12119917940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46615091 (or 46615089 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 44.

The spelling of 12119917940 in words is "twelve billion, one hundred nineteen million, nine hundred seventeen thousand, nine hundred forty".