5130120042 has 64 divisors (see below), whose sum is σ = 12095078400. Its totient is φ = 1607240880.

The previous prime is 5130120019. The next prime is 5130120043. The reversal of 5130120042 is 2400210315.

It is a Harshad number since it is a multiple of its sum of digits (18).

5130120042 is a modest number, since divided by 120042 gives 5130 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 5130119997 and 5130120024.

It is not an unprimeable number, because it can be changed into a prime (5130120043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 110617 + ... + 149987.

It is an arithmetic number, because the mean of its divisors is an integer number (188985600).

Almost surely, 2^5130120042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5130120042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6047539200).

5130120042 is an abundant number, since it is smaller than the sum of its proper divisors (6964958358).

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

5130120042 is a wasteful number, since it uses less digits than its factorization.

5130120042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39528 (or 39522 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 5130120042 is about 71624.8563139920. The cubic root of 5130120042 is about 1724.6825759977.

Adding to 5130120042 its reverse (2400210315), we get a palindrome (7530330357).

The spelling of 5130120042 in words is "five billion, one hundred thirty million, one hundred twenty thousand, forty-two".