13123443120 has 80 divisors (see below), whose sum is σ = 40693681152. Its totient is φ = 3498638080.

The previous prime is 13123443119. The next prime is 13123443133. The reversal of 13123443120 is 2134432131.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1726849 + ... + 1734431.

Almost surely, 2^13123443120 is an apocalyptic number.

13123443120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13123443120 is an abundant number, since it is smaller than the sum of its proper divisors (27570238032).

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

13123443120 is a wasteful number, since it uses less digits than its factorization.

13123443120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14810 (or 14804 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 13123443120 its reverse (2134432131), we get a palindrome (15257875251).

The spelling of 13123443120 in words is "thirteen billion, one hundred twenty-three million, four hundred forty-three thousand, one hundred twenty".