13003042120 has 16 divisors (see below), whose sum is σ = 29256844860. Its totient is φ = 5201216832.

The previous prime is 13003042109. The next prime is 13003042123. The reversal of 13003042120 is 2124030031.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 13000104324 + 2937796 = 114018^2 + 1714^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13003042094 and 13003042103.

It is not an unprimeable number, because it can be changed into a prime (13003042123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162537987 + ... + 162538066.

Almost surely, 2^13003042120 is an apocalyptic number.

13003042120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13003042120 is an abundant number, since it is smaller than the sum of its proper divisors (16253802740).

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

13003042120 is a wasteful number, since it uses less digits than its factorization.

13003042120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325076064 (or 325076060 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 13003042120 its reverse (2124030031), we get a palindrome (15127072151).

The spelling of 13003042120 in words is "thirteen billion, three million, forty-two thousand, one hundred twenty".