202102311444 has 24 divisors (see below), whose sum is σ = 514442247648. Its totient is φ = 61243124640.

The previous prime is 202102311401. The next prime is 202102311473. The reversal of 202102311444 is 444113201202.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 765538927 + ... + 765539190.

It is an arithmetic number, because the mean of its divisors is an integer number (21435093652).

Almost surely, 2^202102311444 is an apocalyptic number.

It is an amenable number.

202102311444 is an abundant number, since it is smaller than the sum of its proper divisors (312339936204).

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

202102311444 is a wasteful number, since it uses less digits than its factorization.

202102311444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1531078135 (or 1531078133 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 202102311444 its reverse (444113201202), we get a palindrome (646215512646).

The spelling of 202102311444 in words is "two hundred two billion, one hundred two million, three hundred eleven thousand, four hundred forty-four".