340121232012 has 12 divisors (see below), whose sum is σ = 793616208056. Its totient is φ = 113373744000.

The previous prime is 340121232001. The next prime is 340121232013. The reversal of 340121232012 is 210232121043.

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

It is a self number, because there is not a number n which added to its sum of digits gives 340121232012.

It is not an unprimeable number, because it can be changed into a prime (340121232013) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 14171717989 + ... + 14171718012.

Almost surely, 2^340121232012 is an apocalyptic number.

It is an amenable number.

340121232012 is an abundant number, since it is smaller than the sum of its proper divisors (453494976044).

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

340121232012 is a wasteful number, since it uses less digits than its factorization.

340121232012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28343436008 (or 28343436006 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 340121232012 its reverse (210232121043), we get a palindrome (550353353055).

The spelling of 340121232012 in words is "three hundred forty billion, one hundred twenty-one million, two hundred thirty-two thousand, twelve".