20422013443 has 4 divisors (see below), whose sum is σ = 21992937568. Its totient is φ = 18851089320.

The previous prime is 20422013431. The next prime is 20422013489. The reversal of 20422013443 is 34431022402.

It is a happy number.

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 20422013443 - 2²⁵ = 20388459011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20422017443) 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, 785462043 + ... + 785462068.

It is an arithmetic number, because the mean of its divisors is an integer number (5498234392).

Almost surely, 2^20422013443 is an apocalyptic number.

20422013443 is a deficient number, since it is larger than the sum of its proper divisors (1570924125).

20422013443 is a wasteful number, since it uses less digits than its factorization.

20422013443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1570924124.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 20422013443 its reverse (34431022402), we get a palindrome (54853035845).

The spelling of 20422013443 in words is "twenty billion, four hundred twenty-two million, thirteen thousand, four hundred forty-three".