20123230443000 has 128 divisors (see below), whose sum is σ = 63644541030720. Its totient is φ = 5292685209600.

The previous prime is 20123230442999. The next prime is 20123230443023. The reversal of 20123230443000 is 34403232102.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45724449 + ... + 46162448.

Almost surely, 2^{20123230443000} is an apocalyptic number.

20123230443000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20123230443000 is an abundant number, since it is smaller than the sum of its proper divisors (43521310587720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20123230443000 is a wasteful number, since it uses less digits than its factorization.

20123230443000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91886994 (or 91886980 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 20123230443000 its reverse (34403232102), we get a palindrome (20157633675102).

The spelling of 20123230443000 in words is "twenty trillion, one hundred twenty-three billion, two hundred thirty million, four hundred forty-three thousand".