202421443313 has 8 divisors (see below), whose sum is σ = 202544331240. Its totient is φ = 202298595840.

The previous prime is 202421443283. The next prime is 202421443379. The reversal of 202421443313 is 313344124202.

It can be written as a sum of positive squares in 4 ways, for example, as 43310604544 + 159110838769 = 208112^2 + 398887^2 .

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 202421443313 - 2⁸ = 202421443057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202421440313) 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 7 ways as a sum of consecutive naturals, for example, 20690483 + ... + 20700263.

It is an arithmetic number, because the mean of its divisors is an integer number (25318041405).

Almost surely, 2^202421443313 is an apocalyptic number.

It is an amenable number.

202421443313 is a deficient number, since it is larger than the sum of its proper divisors (122887927).

202421443313 is an equidigital number, since it uses as much as digits as its factorization.

202421443313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20227.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 202421443313 its reverse (313344124202), we get a palindrome (515765567515).

The spelling of 202421443313 in words is "two hundred two billion, four hundred twenty-one million, four hundred forty-three thousand, three hundred thirteen".