202130120052 has 36 divisors (see below), whose sum is σ = 583931458656. Its totient is φ = 57751462800.

The previous prime is 202130120051. The next prime is 202130120077. The reversal of 202130120052 is 250021031202.

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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (202130120051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 401051574 + ... + 401052077.

It is an arithmetic number, because the mean of its divisors is an integer number (16220318296).

Almost surely, 2^202130120052 is an apocalyptic number.

It is an amenable number.

202130120052 is an abundant number, since it is smaller than the sum of its proper divisors (381801338604).

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

202130120052 is a wasteful number, since it uses less digits than its factorization.

202130120052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802103668 (or 802103663 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

Adding to 202130120052 its reverse (250021031202), we get a palindrome (452151151254).

The spelling of 202130120052 in words is "two hundred two billion, one hundred thirty million, one hundred twenty thousand, fifty-two".