234203400421 has 24 divisors (see below), whose sum is σ = 268962896480. Its totient is φ = 203181219072.

The previous prime is 234203400391. The next prime is 234203400439. The reversal of 234203400421 is 124004302432.

It is a happy number.

234203400421 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 234203400421 - 2¹⁵ = 234203367653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234203400461) 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 23 ways as a sum of consecutive naturals, for example, 373215 + ... + 779548.

Almost surely, 2^234203400421 is an apocalyptic number.

It is an amenable number.

234203400421 is a deficient number, since it is larger than the sum of its proper divisors (34759496059).

234203400421 is a wasteful number, since it uses less digits than its factorization.

234203400421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152853 (or 1152836 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 234203400421 its reverse (124004302432), we get a palindrome (358207702853).

The spelling of 234203400421 in words is "two hundred thirty-four billion, two hundred three million, four hundred thousand, four hundred twenty-one".