30320131030020 has 144 divisors (see below), whose sum is σ = 99058482012672. Its totient is φ = 7462458328320.

The previous prime is 30320131030009. The next prime is 30320131030067. The reversal of 30320131030020 is 2003013102303.

30320131030020 is a `hidden beast` number, since 3 + 0 + 32 + 0 + 1 + 310 + 300 + 20 = 666.

It is a super-2 number, since 2×30320131030020² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 30320131029975 and 30320131030002.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17477665 + ... + 19133975.

It is an arithmetic number, because the mean of its divisors is an integer number (687906125088).

Almost surely, 2^{30320131030020} is an apocalyptic number.

30320131030020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30320131030020 is an abundant number, since it is smaller than the sum of its proper divisors (68738350982652).

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

30320131030020 is a wasteful number, since it uses less digits than its factorization.

30320131030020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1664162 (or 1664157 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 30320131030020 its reverse (2003013102303), we get a palindrome (32323144132323).

The spelling of 30320131030020 in words is "thirty trillion, three hundred twenty billion, one hundred thirty-one million, thirty thousand, twenty".