12123182394 has 24 divisors (see below), whose sum is σ = 26275579200. Its totient is φ = 4039724808.

The previous prime is 12123182371. The next prime is 12123182399. The reversal of 12123182394 is 49328132121.

It is not an unprimeable number, because it can be changed into a prime (12123182399) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54594 + ... + 165005.

It is an arithmetic number, because the mean of its divisors is an integer number (1094815800).

Almost surely, 2^12123182394 is an apocalyptic number.

12123182394 is an abundant number, since it is smaller than the sum of its proper divisors (14152396806).

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

12123182394 is a wasteful number, since it uses less digits than its factorization.

12123182394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222674 (or 222671 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The spelling of 12123182394 in words is "twelve billion, one hundred twenty-three million, one hundred eighty-two thousand, three hundred ninety-four".