202334312421 has 8 divisors (see below), whose sum is σ = 299754536960. Its totient is φ = 134889541596.

The previous prime is 202334312417. The next prime is 202334312429. The reversal of 202334312421 is 124213433202.

202334312421 is a `hidden beast` number, since 2 + 0 + 233 + 4 + 3 + 1 + 2 + 421 = 666.

202334312421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 202334312421 - 2² = 202334312417 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 7493863423 = 202334312421 / (2 + 0 + 2 + 3 + 3 + 4 + 3 + 1 + 2 + 4 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202334312429) 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, 3746931685 + ... + 3746931738.

It is an arithmetic number, because the mean of its divisors is an integer number (37469317120).

Almost surely, 2^202334312421 is an apocalyptic number.

It is an amenable number.

202334312421 is a deficient number, since it is larger than the sum of its proper divisors (97420224539).

202334312421 is an equidigital number, since it uses as much as digits as its factorization.

202334312421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7493863432 (or 7493863426 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 202334312421 its reverse (124213433202), we get a palindrome (326547745623).

The spelling of 202334312421 in words is "two hundred two billion, three hundred thirty-four million, three hundred twelve thousand, four hundred twenty-one".