320030302020 has 384 divisors, whose sum is σ = 1070161279488. Its totient is φ = 70436044800.

The previous prime is 320030301953. The next prime is 320030302037. The reversal of 320030302020 is 20203030023.

It is a super-2 number, since 2×320030302020² (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 an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 414010354 + ... + 414011126.

It is an arithmetic number, because the mean of its divisors is an integer number (2786878332).

Almost surely, 2^320030302020 is an apocalyptic number.

320030302020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320030302020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (535080639744).

320030302020 is an abundant number, since it is smaller than the sum of its proper divisors (750130977468).

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

320030302020 is a wasteful number, since it uses less digits than its factorization.

320030302020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1543 (or 1541 counting only the distinct ones).

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

Adding to 320030302020 its reverse (20203030023), we get a palindrome (340233332043).

The spelling of 320030302020 in words is "three hundred twenty billion, thirty million, three hundred two thousand, twenty".