30021200110320 has 160 divisors (see below), whose sum is σ = 93298398073920. Its totient is φ = 7985642864640.

The previous prime is 30021200110309. The next prime is 30021200110381. The reversal of 30021200110320 is 2301100212003.

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

It is a self number, because there is not a number n which added to its sum of digits gives 30021200110320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1189935466 + ... + 1189960694.

It is an arithmetic number, because the mean of its divisors is an integer number (583114987962).

Almost surely, 2^{30021200110320} is an apocalyptic number.

30021200110320 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 30021200110320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46649199036960).

30021200110320 is an abundant number, since it is smaller than the sum of its proper divisors (63277197963600).

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

30021200110320 is a wasteful number, since it uses less digits than its factorization.

30021200110320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37443 (or 37437 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 30021200110320 its reverse (2301100212003), we get a palindrome (32322300322323).

The spelling of 30021200110320 in words is "thirty trillion, twenty-one billion, two hundred million, one hundred ten thousand, three hundred twenty".