4320120531 has 16 divisors (see below), whose sum is σ = 5786705664. Its totient is φ = 2866829664.

The previous prime is 4320120523. The next prime is 4320120557. The reversal of 4320120531 is 1350210234.

It is not a de Polignac number, because 4320120531 - 2³ = 4320120523 is a prime.

It is a super-2 number, since 2×4320120531² = 37326882804735443922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4320120498 and 4320120507.

It is not an unprimeable number, because it can be changed into a prime (4320120731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1134076 + ... + 1137878.

It is an arithmetic number, because the mean of its divisors is an integer number (361669104).

Almost surely, 2^4320120531 is an apocalyptic number.

4320120531 is a deficient number, since it is larger than the sum of its proper divisors (1466585133).

4320120531 is a wasteful number, since it uses less digits than its factorization.

4320120531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5450.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 4320120531 is about 65727.6238046075. The cubic root of 4320120531 is about 1628.6657166434.

Adding to 4320120531 its reverse (1350210234), we get a palindrome (5670330765).

The spelling of 4320120531 in words is "four billion, three hundred twenty million, one hundred twenty thousand, five hundred thirty-one".