202143320422 has 4 divisors (see below), whose sum is σ = 303214980636. Its totient is φ = 101071660210.

The previous prime is 202143320329. The next prime is 202143320441. The reversal of 202143320422 is 224023341202.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50535830104 + ... + 50535830107.

It is an arithmetic number, because the mean of its divisors is an integer number (75803745159).

Almost surely, 2^202143320422 is an apocalyptic number.

202143320422 is a deficient number, since it is larger than the sum of its proper divisors (101071660214).

202143320422 is a wasteful number, since it uses less digits than its factorization.

202143320422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101071660213.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 202143320422 its reverse (224023341202), we get a palindrome (426166661624).

The spelling of 202143320422 in words is "two hundred two billion, one hundred forty-three million, three hundred twenty thousand, four hundred twenty-two".