13120432320032 has 48 divisors (see below), whose sum is σ = 26442324326880. Its totient is φ = 6405045545472.

The previous prime is 13120432319993. The next prime is 13120432320103. The reversal of 13120432320032 is 23002323402131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13120432319983 and 13120432320010.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1444748 + ... + 5322420.

It is an arithmetic number, because the mean of its divisors is an integer number (550881756810).

Almost surely, 2^{13120432320032} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13120432320032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13221162163440).

13120432320032 is an abundant number, since it is smaller than the sum of its proper divisors (13321892006848).

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

13120432320032 is a wasteful number, since it uses less digits than its factorization.

13120432320032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3880185 (or 3880177 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 13120432320032 its reverse (23002323402131), we get a palindrome (36122755722163).

The spelling of 13120432320032 in words is "thirteen trillion, one hundred twenty billion, four hundred thirty-two million, three hundred twenty thousand, thirty-two".