30520203163340 has 96 divisors (see below), whose sum is σ = 70615408385088. Its totient is φ = 10987729280000.

The previous prime is 30520203163309. The next prime is 30520203163423. The reversal of 30520203163340 is 4336130202503.

It is a super-2 number, since 2×30520203163340² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30520203163297 and 30520203163306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 548295110 + ... + 548350770.

It is an arithmetic number, because the mean of its divisors is an integer number (735577170678).

Almost surely, 2^{30520203163340} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30520203163340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35307704192544).

30520203163340 is an abundant number, since it is smaller than the sum of its proper divisors (40095205221748).

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

30520203163340 is a wasteful number, since it uses less digits than its factorization.

30520203163340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80459 (or 80457 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 32.

Adding to 30520203163340 its reverse (4336130202503), we get a palindrome (34856333365843).

The spelling of 30520203163340 in words is "thirty trillion, five hundred twenty billion, two hundred three million, one hundred sixty-three thousand, three hundred forty".