12020422043 has 4 divisors (see below), whose sum is σ = 13737625200. Its totient is φ = 10303218888.

The previous prime is 12020422031. The next prime is 12020422061. The reversal of 12020422043 is 34022402021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12020422043 - 2¹² = 12020417947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12020422013) 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, 858601568 + ... + 858601581.

It is an arithmetic number, because the mean of its divisors is an integer number (3434406300).

Almost surely, 2^12020422043 is an apocalyptic number.

12020422043 is a deficient number, since it is larger than the sum of its proper divisors (1717203157).

12020422043 is an equidigital number, since it uses as much as digits as its factorization.

12020422043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1717203156.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 12020422043 its reverse (34022402021), we get a palindrome (46042824064).

The spelling of 12020422043 in words is "twelve billion, twenty million, four hundred twenty-two thousand, forty-three".