202141323421 has 8 divisors (see below), whose sum is σ = 208390533624. Its totient is φ = 195954919680.

The previous prime is 202141323409. The next prime is 202141323467. The reversal of 202141323421 is 124323141202.

202141323421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 28657411225 + 173483912196 = 169285^2 + 416514^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 202141323421 - 2⁵ = 202141323389 is a prime.

It is a super-2 number, since 2×202141323421² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202141363421) 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 7 ways as a sum of consecutive naturals, for example, 15695080 + ... + 15707953.

It is an arithmetic number, because the mean of its divisors is an integer number (26048816703).

Almost surely, 2^202141323421 is an apocalyptic number.

It is an amenable number.

202141323421 is a deficient number, since it is larger than the sum of its proper divisors (6249210203).

202141323421 is a wasteful number, since it uses less digits than its factorization.

202141323421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31403231.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 202141323421 its reverse (124323141202), we get a palindrome (326464464623).

The spelling of 202141323421 in words is "two hundred two billion, one hundred forty-one million, three hundred twenty-three thousand, four hundred twenty-one".