12340020012 has 12 divisors (see below), whose sum is σ = 28793380056. Its totient is φ = 4113340000.

The previous prime is 12340019971. The next prime is 12340020019. The reversal of 12340020012 is 21002004321.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 12340019973 and 12340020000.

It is not an unprimeable number, because it can be changed into a prime (12340020019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 514167489 + ... + 514167512.

It is an arithmetic number, because the mean of its divisors is an integer number (2399448338).

Almost surely, 2^12340020012 is an apocalyptic number.

12340020012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12340020012 is an abundant number, since it is smaller than the sum of its proper divisors (16453360044).

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

12340020012 is a wasteful number, since it uses less digits than its factorization.

12340020012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028335008 (or 1028335006 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 12340020012 its reverse (21002004321), we get a palindrome (33342024333).

The spelling of 12340020012 in words is "twelve billion, three hundred forty million, twenty thousand, twelve".