20340120443 has 8 divisors (see below), whose sum is σ = 20460211200. Its totient is φ = 20220354088.

The previous prime is 20340120439. The next prime is 20340120457. The reversal of 20340120443 is 34402104302.

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

It is a cyclic number.

It is not a de Polignac number, because 20340120443 - 2² = 20340120439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20340120413) 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, 45248 + ... + 206706.

It is an arithmetic number, because the mean of its divisors is an integer number (2557526400).

Almost surely, 2^20340120443 is an apocalyptic number.

20340120443 is a deficient number, since it is larger than the sum of its proper divisors (120090757).

20340120443 is a wasteful number, since it uses less digits than its factorization.

20340120443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162201.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 20340120443 its reverse (34402104302), we get a palindrome (54742224745).

The spelling of 20340120443 in words is "twenty billion, three hundred forty million, one hundred twenty thousand, four hundred forty-three".