20443432144234 has 8 divisors (see below), whose sum is σ = 33452888963328. Its totient is φ = 9292469156460.

The previous prime is 20443432144217. The next prime is 20443432144237. The reversal of 20443432144234 is 43244123434402.

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

It is not an unprimeable number, because it can be changed into a prime (20443432144237) 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, 464623457802 + ... + 464623457845.

It is an arithmetic number, because the mean of its divisors is an integer number (4181611120416).

Almost surely, 2^{20443432144234} is an apocalyptic number.

20443432144234 is a deficient number, since it is larger than the sum of its proper divisors (13009456819094).

20443432144234 is a wasteful number, since it uses less digits than its factorization.

20443432144234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929246915660.

The product of its (nonzero) digits is 884736, while the sum is 40.

Adding to 20443432144234 its reverse (43244123434402), we get a palindrome (63687555578636).

The spelling of 20443432144234 in words is "twenty trillion, four hundred forty-three billion, four hundred thirty-two million, one hundred forty-four thousand, two hundred thirty-four".