30133212020 has 24 divisors (see below), whose sum is σ = 63364944384. Its totient is φ = 12037056416.

The previous prime is 30133211959. The next prime is 30133212029. The reversal of 30133212020 is 2021233103.

It is a self number, because there is not a number n which added to its sum of digits gives 30133212020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30133212029) 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, 999044 + ... + 1028763.

It is an arithmetic number, because the mean of its divisors is an integer number (2640206016).

Almost surely, 2^30133212020 is an apocalyptic number.

It is an amenable number.

30133212020 is an abundant number, since it is smaller than the sum of its proper divisors (33231732364).

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

30133212020 is a wasteful number, since it uses less digits than its factorization.

30133212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2028559 (or 2028557 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 30133212020 its reverse (2021233103), we get a palindrome (32154445123).

The spelling of 30133212020 in words is "thirty billion, one hundred thirty-three million, two hundred twelve thousand, twenty".