202143321001 has 4 divisors (see below), whose sum is σ = 202144535892. Its totient is φ = 202142106112.

The previous prime is 202143320987. The next prime is 202143321053. The reversal of 202143321001 is 100123341202.

It is a happy number.

202143321001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 152821573776 + 49321747225 = 390924^2 + 222085^2 .

It is a cyclic number.

It is not a de Polignac number, because 202143321001 - 2¹³ = 202143312809 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 202143321001.

It is not an unprimeable number, because it can be changed into a prime (202143321071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 308980 + ... + 706933.

It is an arithmetic number, because the mean of its divisors is an integer number (50536133973).

Almost surely, 2^202143321001 is an apocalyptic number.

It is an amenable number.

202143321001 is a deficient number, since it is larger than the sum of its proper divisors (1214891).

202143321001 is a wasteful number, since it uses less digits than its factorization.

202143321001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214890.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 202143321001 its reverse (100123341202), we get a palindrome (302266662203).

The spelling of 202143321001 in words is "two hundred two billion, one hundred forty-three million, three hundred twenty-one thousand, one".