201020430 has 96 divisors (see below), whose sum is σ = 539688960. Its totient is φ = 47848320.

The previous prime is 201020423. The next prime is 201020441. The reversal of 201020430 is 34020102.

It is a Curzon number.

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, 156531 + ... + 157809.

It is an arithmetic number, because the mean of its divisors is an integer number (5621760).

Almost surely, 2^201020430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201020430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269844480).

201020430 is an abundant number, since it is smaller than the sum of its proper divisors (338668530).

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

201020430 is a wasteful number, since it uses less digits than its factorization.

201020430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1346 (or 1333 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 201020430 is about 14178.1673709969. The cubic root of 201020430 is about 585.7964460536.

Adding to 201020430 its reverse (34020102), we get a palindrome (235040532).

The spelling of 201020430 in words is "two hundred one million, twenty thousand, four hundred thirty".