30310020221020 has 24 divisors (see below), whose sum is σ = 63655563405168. Its totient is φ = 12123146956800.

The previous prime is 30310020221003. The next prime is 30310020221023. The reversal of 30310020221020 is 2012202001303.

It is a junction number, because it is equal to n+sod(n) for n = 30310020220985 and 30310020221003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30310020221023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53532066 + ... + 54095305.

It is an arithmetic number, because the mean of its divisors is an integer number (2652315141882).

Almost surely, 2^{30310020221020} is an apocalyptic number.

It is an amenable number.

30310020221020 is an abundant number, since it is smaller than the sum of its proper divisors (33345543184148).

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

30310020221020 is a wasteful number, since it uses less digits than its factorization.

30310020221020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107641461 (or 107641459 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 30310020221020 its reverse (2012202001303), we get a palindrome (32322222222323).

The spelling of 30310020221020 in words is "thirty trillion, three hundred ten billion, twenty million, two hundred twenty-one thousand, twenty".