12020421031004 has 24 divisors (see below), whose sum is σ = 21986142208800. Its totient is φ = 5739518689344.

The previous prime is 12020421030991. The next prime is 12020421031013. The reversal of 12020421031004 is 40013012402021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106515179 + ... + 106627970.

It is an arithmetic number, because the mean of its divisors is an integer number (916089258700).

Almost surely, 2^{12020421031004} is an apocalyptic number.

It is an amenable number.

12020421031004 is a deficient number, since it is larger than the sum of its proper divisors (9965721177796).

12020421031004 is a wasteful number, since it uses less digits than its factorization.

12020421031004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213143789 (or 213143787 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12020421031004 its reverse (40013012402021), we get a palindrome (52033433433025).

The spelling of 12020421031004 in words is "twelve trillion, twenty billion, four hundred twenty-one million, thirty-one thousand, four".