202143303243 has 32 divisors (see below), whose sum is σ = 342385228800. Its totient is φ = 115465903488.

The previous prime is 202143303137. The next prime is 202143303247. The reversal of 202143303243 is 342303341202.

202143303243 is a `hidden beast` number, since 2 + 0 + 2 + 1 + 4 + 330 + 324 + 3 = 666.

It is not a de Polignac number, because 202143303243 - 2¹² = 202143299147 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (202143303247) 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 31 ways as a sum of consecutive naturals, for example, 288130 + ... + 698072.

It is an arithmetic number, because the mean of its divisors is an integer number (10699538400).

Almost surely, 2^202143303243 is an apocalyptic number.

202143303243 is a deficient number, since it is larger than the sum of its proper divisors (140241925557).

202143303243 is a wasteful number, since it uses less digits than its factorization.

202143303243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412568 (or 412562 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 202143303243 its reverse (342303341202), we get a palindrome (544446644445).

The spelling of 202143303243 in words is "two hundred two billion, one hundred forty-three million, three hundred three thousand, two hundred forty-three".