202021311344 has 20 divisors (see below), whose sum is σ = 394273348224. Its totient is φ = 100273350528.

The previous prime is 202021311313. The next prime is 202021311347. The reversal of 202021311344 is 443113120202.

It is a super-2 number, since 2×202021311344² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202021311347) 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 3 ways as a sum of consecutive naturals, for example, 46079312 + ... + 46083695.

Almost surely, 2^202021311344 is an apocalyptic number.

It is an amenable number.

202021311344 is a deficient number, since it is larger than the sum of its proper divisors (192252036880).

202021311344 is a wasteful number, since it uses less digits than its factorization.

202021311344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92163152 (or 92163146 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 202021311344 its reverse (443113120202), we get a palindrome (645134431546).

The spelling of 202021311344 in words is "two hundred two billion, twenty-one million, three hundred eleven thousand, three hundred forty-four".