202002312343400 has 24 divisors (see below), whose sum is σ = 469655376198870. Its totient is φ = 80800924937280.

The previous prime is 202002312343379. The next prime is 202002312343471. The reversal of 202002312343400 is 4343213200202.

It can be written as a sum of positive squares in 3 ways, for example, as 191951548296964 + 10050764046436 = 13854658^2 + 3170294^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 202002312343400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 505005780659 + ... + 505005781058.

Almost surely, 2^{202002312343400} is an apocalyptic number.

202002312343400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202002312343400 is an abundant number, since it is smaller than the sum of its proper divisors (267653063855470).

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

202002312343400 is a wasteful number, since it uses less digits than its factorization.

202002312343400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010011561733 (or 1010011561724 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 202002312343400 its reverse (4343213200202), we get a palindrome (206345525543602).

The spelling of 202002312343400 in words is "two hundred two trillion, two billion, three hundred twelve million, three hundred forty-three thousand, four hundred".