202113102120 has 32 divisors (see below), whose sum is σ = 606339306720. Its totient is φ = 53896827200.

The previous prime is 202113102109. The next prime is 202113102127. The reversal of 202113102120 is 21201311202.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 202113102120.

It is not an unprimeable number, because it can be changed into a prime (202113102127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 842137806 + ... + 842138045.

It is an arithmetic number, because the mean of its divisors is an integer number (18948103335).

Almost surely, 2^202113102120 is an apocalyptic number.

202113102120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202113102120 is an abundant number, since it is smaller than the sum of its proper divisors (404226204600).

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

202113102120 is a wasteful number, since it uses less digits than its factorization.

202113102120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1684275865 (or 1684275861 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 202113102120 its reverse (21201311202), we get a palindrome (223314413322).

The spelling of 202113102120 in words is "two hundred two billion, one hundred thirteen million, one hundred two thousand, one hundred twenty".