202020101320 has 64 divisors (see below), whose sum is σ = 456261951600. Its totient is φ = 80503357440.

The previous prime is 202020101303. The next prime is 202020101357. The reversal of 202020101320 is 23101020202.

It can be written as a sum of positive squares in 8 ways, for example, as 62999996004 + 139020105316 = 250998^2 + 372854^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 202020101320.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 13700992 + ... + 13715728.

Almost surely, 2^202020101320 is an apocalyptic number.

202020101320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202020101320 is an abundant number, since it is smaller than the sum of its proper divisors (254241850280).

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

202020101320 is a wasteful number, since it uses less digits than its factorization.

202020101320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16018 (or 16014 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 202020101320 its reverse (23101020202), we get a palindrome (225121121522).

The spelling of 202020101320 in words is "two hundred two billion, twenty million, one hundred one thousand, three hundred twenty".