13123443000 has 128 divisors (see below), whose sum is σ = 41328817920. Its totient is φ = 3466793600.

The previous prime is 13123442963. The next prime is 13123443043. The reversal of 13123443000 is 34432131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 300559 + ... + 341441.

It is an arithmetic number, because the mean of its divisors is an integer number (322881390).

Almost surely, 2^13123443000 is an apocalyptic number.

13123443000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13123443000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20664408960).

13123443000 is an abundant number, since it is smaller than the sum of its proper divisors (28205374920).

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

13123443000 is a wasteful number, since it uses less digits than its factorization.

13123443000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41014 (or 41000 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 13123443000 its reverse (34432131), we get a palindrome (13157875131).

The spelling of 13123443000 in words is "thirteen billion, one hundred twenty-three million, four hundred forty-three thousand".