202334042421 has 160 divisors (see below), whose sum is σ = 365080905728. Its totient is φ = 109254821760.

The previous prime is 202334042377. The next prime is 202334042429. The reversal of 202334042421 is 124240433202.

202334042421 is a `hidden beast` number, since 2 + 0 + 233 + 4 + 0 + 4 + 2 + 421 = 666.

202334042421 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 202334042421 - 2¹¹ = 202334040373 is a prime.

It is a super-3 number, since 3×202334042421³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202334042429) 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 159 ways as a sum of consecutive naturals, for example, 190341936 + ... + 190342998.

Almost surely, 2^202334042421 is an apocalyptic number.

202334042421 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

202334042421 is a deficient number, since it is larger than the sum of its proper divisors (162746863307).

202334042421 is a wasteful number, since it uses less digits than its factorization.

202334042421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1373 (or 1364 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 202334042421 its reverse (124240433202), we get a palindrome (326574475623).

The spelling of 202334042421 in words is "two hundred two billion, three hundred thirty-four million, forty-two thousand, four hundred twenty-one".