320253034530 has 384 divisors, whose sum is σ = 961801620480. Its totient is φ = 67462087680.

The previous prime is 320253034501. The next prime is 320253034547. The reversal of 320253034530 is 35430352023.

It is a super-2 number, since 2×320253034530² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 183315117 + ... + 183316863.

It is an arithmetic number, because the mean of its divisors is an integer number (2504691720).

Almost surely, 2^320253034530 is an apocalyptic number.

320253034530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 320253034530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (480900810240).

320253034530 is an abundant number, since it is smaller than the sum of its proper divisors (641548585950).

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

320253034530 is a wasteful number, since it uses less digits than its factorization.

320253034530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1986 (or 1973 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 30.

Adding to 320253034530 its reverse (35430352023), we get a palindrome (355683386553).

The spelling of 320253034530 in words is "three hundred twenty billion, two hundred fifty-three million, thirty-four thousand, five hundred thirty".