30211200020 has 12 divisors (see below), whose sum is σ = 63443520084. Its totient is φ = 12084480000.

The previous prime is 30211199999. The next prime is 30211200043. The reversal of 30211200020 is 2000211203.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11628602896 + 18582597124 = 107836^2 + 136318^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30211199974 and 30211200010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 755279981 + ... + 755280020.

It is an arithmetic number, because the mean of its divisors is an integer number (5286960007).

Almost surely, 2^30211200020 is an apocalyptic number.

It is an amenable number.

30211200020 is an abundant number, since it is smaller than the sum of its proper divisors (33232320064).

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

30211200020 is a wasteful number, since it uses less digits than its factorization.

30211200020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1510560010 (or 1510560008 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 30211200020 its reverse (2000211203), we get a palindrome (32211411223).

The spelling of 30211200020 in words is "thirty billion, two hundred eleven million, two hundred thousand, twenty".