20123200443 has 8 divisors (see below), whose sum is σ = 26979171856. Its totient is φ = 13341348000.

The previous prime is 20123200439. The next prime is 20123200477. The reversal of 20123200443 is 34400232102.

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

It is not a de Polignac number, because 20123200443 - 2² = 20123200439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20123200403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18529108 + ... + 18530193.

It is an arithmetic number, because the mean of its divisors is an integer number (3372396482).

Almost surely, 2^20123200443 is an apocalyptic number.

20123200443 is a deficient number, since it is larger than the sum of its proper divisors (6855971413).

20123200443 is a wasteful number, since it uses less digits than its factorization.

20123200443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37059485.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 20123200443 its reverse (34400232102), we get a palindrome (54523432545).

The spelling of 20123200443 in words is "twenty billion, one hundred twenty-three million, two hundred thousand, four hundred forty-three".