202121030034 has 48 divisors (see below), whose sum is σ = 545989279680. Its totient is φ = 52498968480.

The previous prime is 202121030021. The next prime is 202121030051. The reversal of 202121030034 is 430030121202.

202121030034 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 202121029989 and 202121030016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72913849 + ... + 72916620.

It is an arithmetic number, because the mean of its divisors is an integer number (11374776660).

Almost surely, 2^202121030034 is an apocalyptic number.

202121030034 is an abundant number, since it is smaller than the sum of its proper divisors (343868249646).

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

202121030034 is a wasteful number, since it uses less digits than its factorization.

202121030034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145830495 (or 145830492 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 202121030034 its reverse (430030121202), we get a palindrome (632151151236).

The spelling of 202121030034 in words is "two hundred two billion, one hundred twenty-one million, thirty thousand, thirty-four".