12103332978 has 16 divisors (see below), whose sum is σ = 26407272096. Its totient is φ = 3667676640.

The previous prime is 12103332977. The next prime is 12103332979. The reversal of 12103332978 is 87923330121.

It is an interprime number because it is at equal distance from previous prime (12103332977) and next prime (12103332979).

It is not an unprimeable number, because it can be changed into a prime (12103332977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91691851 + ... + 91691982.

It is an arithmetic number, because the mean of its divisors is an integer number (1650454506).

Almost surely, 2^12103332978 is an apocalyptic number.

12103332978 is an abundant number, since it is smaller than the sum of its proper divisors (14303939118).

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

12103332978 is a wasteful number, since it uses less digits than its factorization.

12103332978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183383849.

The product of its (nonzero) digits is 54432, while the sum is 39.

The spelling of 12103332978 in words is "twelve billion, one hundred three million, three hundred thirty-two thousand, nine hundred seventy-eight".