13121342124 has 72 divisors (see below), whose sum is σ = 34369004544. Its totient is φ = 3891544800.

The previous prime is 13121342099. The next prime is 13121342147. The reversal of 13121342124 is 42124312131.

13121342124 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 13121342094 and 13121342103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27892 + ... + 164379.

Almost surely, 2^13121342124 is an apocalyptic number.

It is an amenable number.

13121342124 is an abundant number, since it is smaller than the sum of its proper divisors (21247662420).

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

13121342124 is a wasteful number, since it uses less digits than its factorization.

13121342124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192347 (or 192334 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

Adding to 13121342124 its reverse (42124312131), we get a palindrome (55245654255).

The spelling of 13121342124 in words is "thirteen billion, one hundred twenty-one million, three hundred forty-two thousand, one hundred twenty-four".