30020020120 has 16 divisors (see below), whose sum is σ = 67545045360. Its totient is φ = 12008008032.

The previous prime is 30020020091. The next prime is 30020020123. The reversal of 30020020120 is 2102002003.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 30020020097 and 30020020106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30020020123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 375250212 + ... + 375250291.

It is an arithmetic number, because the mean of its divisors is an integer number (4221565335).

Almost surely, 2^30020020120 is an apocalyptic number.

It is an amenable number.

30020020120 is an abundant number, since it is smaller than the sum of its proper divisors (37525025240).

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

30020020120 is a wasteful number, since it uses less digits than its factorization.

30020020120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750500514 (or 750500510 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

Adding to 30020020120 its reverse (2102002003), we get a palindrome (32122022123).

The spelling of 30020020120 in words is "thirty billion, twenty million, twenty thousand, one hundred twenty".