13120344424 has 16 divisors (see below), whose sum is σ = 26837068320. Its totient is φ = 5963792880.

The previous prime is 13120344331. The next prime is 13120344449. The reversal of 13120344424 is 42444302131.

It is a junction number, because it is equal to n+sod(n) for n = 13120344392 and 13120344401.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74547324 + ... + 74547499.

It is an arithmetic number, because the mean of its divisors is an integer number (1677316770).

Almost surely, 2^13120344424 is an apocalyptic number.

It is an amenable number.

13120344424 is an abundant number, since it is smaller than the sum of its proper divisors (13716723896).

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

13120344424 is a wasteful number, since it uses less digits than its factorization.

13120344424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149094840 (or 149094836 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 13120344424 its reverse (42444302131), we get a palindrome (55564646555).

The spelling of 13120344424 in words is "thirteen billion, one hundred twenty million, three hundred forty-four thousand, four hundred twenty-four".