12020431402 has 8 divisors (see below), whose sum is σ = 20606453856. Its totient is φ = 5151613452.

The previous prime is 12020431391. The next prime is 12020431441. The reversal of 12020431402 is 20413402021.

12020431402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12020431402.

It is an unprimeable number.

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, 429301108 + ... + 429301135.

It is an arithmetic number, because the mean of its divisors is an integer number (2575806732).

Almost surely, 2^12020431402 is an apocalyptic number.

12020431402 is a deficient number, since it is larger than the sum of its proper divisors (8586022454).

12020431402 is an equidigital number, since it uses as much as digits as its factorization.

12020431402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858602252.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 12020431402 its reverse (20413402021), we get a palindrome (32433833423).

The spelling of 12020431402 in words is "twelve billion, twenty million, four hundred thirty-one thousand, four hundred two".