5131240220 has 24 divisors (see below), whose sum is σ = 11409464304. Its totient is φ = 1931760896.

The previous prime is 5131240217. The next prime is 5131240229. The reversal of 5131240220 is 220421315.

It is a super-3 number, since 3×5131240220³ (a number of 30 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 5131240192 and 5131240201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5131240229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7545602 + ... + 7546281.

It is an arithmetic number, because the mean of its divisors is an integer number (475394346).

Almost surely, 2^5131240220 is an apocalyptic number.

It is an amenable number.

5131240220 is an abundant number, since it is smaller than the sum of its proper divisors (6278224084).

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

5131240220 is a wasteful number, since it uses less digits than its factorization.

5131240220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15091909 (or 15091907 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 5131240220 is about 71632.6756445688. The cubic root of 5131240220 is about 1724.8080968344.

Adding to 5131240220 its reverse (220421315), we get a palindrome (5351661535).

The spelling of 5131240220 in words is "five billion, one hundred thirty-one million, two hundred forty thousand, two hundred twenty".