202112131424 has 72 divisors (see below), whose sum is σ = 462998690280. Its totient is φ = 86595941376.

The previous prime is 202112131423. The next prime is 202112131427. The reversal of 202112131424 is 424131211202.

It is a self number, because there is not a number n which added to its sum of digits gives 202112131424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202112131423) 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 11 ways as a sum of consecutive naturals, for example, 6534107 + ... + 6564965.

It is an arithmetic number, because the mean of its divisors is an integer number (6430537365).

Almost surely, 2^202112131424 is an apocalyptic number.

It is an amenable number.

202112131424 is an abundant number, since it is smaller than the sum of its proper divisors (260886558856).

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

202112131424 is a wasteful number, since it uses less digits than its factorization.

202112131424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35060 (or 35045 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 202112131424 its reverse (424131211202), we get a palindrome (626243342626).

The spelling of 202112131424 in words is "two hundred two billion, one hundred twelve million, one hundred thirty-one thousand, four hundred twenty-four".