320020302030 has 128 divisors (see below), whose sum is σ = 904412113920. Its totient is φ = 71447132160.

The previous prime is 320020302011. The next prime is 320020302053. The reversal of 320020302030 is 30203020023.

It is a super-2 number, since 2×320020302030² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1771431 + ... + 1943709.

It is an arithmetic number, because the mean of its divisors is an integer number (7065719640).

Almost surely, 2^320020302030 is an apocalyptic number.

320020302030 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 320020302030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (452206056960).

320020302030 is an abundant number, since it is smaller than the sum of its proper divisors (584391811890).

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

320020302030 is a wasteful number, since it uses less digits than its factorization.

320020302030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172746.

The product of its (nonzero) digits is 216, while the sum is 15.

Adding to 320020302030 its reverse (30203020023), we get a palindrome (350223322053).

The spelling of 320020302030 in words is "three hundred twenty billion, twenty million, three hundred two thousand, thirty".