30320202020 has 24 divisors (see below), whose sum is σ = 64302848568. Its totient is φ = 12008000000.

The previous prime is 30320201993. The next prime is 30320202131. The reversal of 30320202020 is 2020202303.

It can be written as a sum of positive squares in 4 ways, for example, as 15906758884 + 14413443136 = 126122^2 + 120056^2 .

It is a super-2 number, since 2×30320202020² (a number of 22 digits) contains 22 as substring.

30320202020 is a modest number, since divided by 202020 gives 30320 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 30320201986 and 30320202004.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7502981 + ... + 7507020.

It is an arithmetic number, because the mean of its divisors is an integer number (2679285357).

Almost surely, 2^30320202020 is an apocalyptic number.

It is an amenable number.

30320202020 is an abundant number, since it is smaller than the sum of its proper divisors (33982646548).

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

30320202020 is a wasteful number, since it uses less digits than its factorization.

30320202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15010111 (or 15010109 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

Adding to 30320202020 its reverse (2020202303), we get a palindrome (32340404323).

The spelling of 30320202020 in words is "thirty billion, three hundred twenty million, two hundred two thousand, twenty".