202013143021 has 8 divisors (see below), whose sum is σ = 208991185920. Its totient is φ = 195035905008.

The previous prime is 202013143019. The next prime is 202013143051. The reversal of 202013143021 is 120341310202.

It is a happy number.

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 202013143021 - 2¹ = 202013143019 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 202013143021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202013143051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333540 + ... + 717826.

It is an arithmetic number, because the mean of its divisors is an integer number (26123898240).

Almost surely, 2^202013143021 is an apocalyptic number.

It is an amenable number.

202013143021 is a deficient number, since it is larger than the sum of its proper divisors (6978042899).

202013143021 is a wasteful number, since it uses less digits than its factorization.

202013143021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402443.

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

Adding to 202013143021 its reverse (120341310202), we get a palindrome (322354453223).

The spelling of 202013143021 in words is "two hundred two billion, thirteen million, one hundred forty-three thousand, twenty-one".