12340420420002 has 64 divisors (see below), whose sum is σ = 24946618394880. Its totient is φ = 4069323546624.

The previous prime is 12340420419989. The next prime is 12340420420063. The reversal of 12340420420002 is 20002402404321.

It is a super-2 number, since 2×12340420420002² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 805029874 + ... + 805045202.

It is an arithmetic number, because the mean of its divisors is an integer number (389790912420).

Almost surely, 2^{12340420420002} is an apocalyptic number.

12340420420002 is an abundant number, since it is smaller than the sum of its proper divisors (12606197974878).

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

12340420420002 is a wasteful number, since it uses less digits than its factorization.

12340420420002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17627.

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 12340420420002 its reverse (20002402404321), we get a palindrome (32342822824323).

The spelling of 12340420420002 in words is "twelve trillion, three hundred forty billion, four hundred twenty million, four hundred twenty thousand, two".