201423044430 has 96 divisors (see below), whose sum is σ = 535222591488. Its totient is φ = 52532625600.

The previous prime is 201423044429. The next prime is 201423044441. The reversal of 201423044430 is 34440324102.

It is a happy number.

201423044430 is a `hidden beast` number, since 20 + 142 + 30 + 44 + 430 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 201423044394 and 201423044403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6206145 + ... + 6238515.

It is an arithmetic number, because the mean of its divisors is an integer number (5575235328).

Almost surely, 2^201423044430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201423044430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267611295744).

201423044430 is an abundant number, since it is smaller than the sum of its proper divisors (333799547058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201423044430 is a wasteful number, since it uses less digits than its factorization.

201423044430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33902 (or 33899 counting only the distinct ones).

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

Adding to 201423044430 its reverse (34440324102), we get a palindrome (235863368532).

The spelling of 201423044430 in words is "two hundred one billion, four hundred twenty-three million, forty-four thousand, four hundred thirty".