30133132020 has 36 divisors (see below), whose sum is σ = 91403834340. Its totient is φ = 8035501824.

The previous prime is 30133131991. The next prime is 30133132021. The reversal of 30133132020 is 2023133103.

30133132020 is a `hidden beast` number, since 301 + 331 + 32 + 0 + 2 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 19769484816 + 10363647204 = 140604^2 + 101802^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 30133131984 and 30133132002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30133132021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83702965 + ... + 83703324.

Almost surely, 2^30133132020 is an apocalyptic number.

30133132020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30133132020 is an abundant number, since it is smaller than the sum of its proper divisors (61270702320).

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

30133132020 is a wasteful number, since it uses less digits than its factorization.

30133132020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167406304 (or 167406299 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 30133132020 its reverse (2023133103), we get a palindrome (32156265123).

The spelling of 30133132020 in words is "thirty billion, one hundred thirty-three million, one hundred thirty-two thousand, twenty".