201430431 has 12 divisors (see below), whose sum is σ = 291169840. Its totient is φ = 134187840.

The previous prime is 201430429. The next prime is 201430441. The reversal of 201430431 is 134034102.

201430431 is a `hidden beast` number, since 201 + 4 + 30 + 431 = 666.

It is not a de Polignac number, because 201430431 - 2¹ = 201430429 is a prime.

It is a super-2 number, since 2×201430431² = 81148437065691522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201430441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5886 + ... + 20916.

Almost surely, 2^201430431 is an apocalyptic number.

201430431 is a deficient number, since it is larger than the sum of its proper divisors (89739409).

201430431 is a wasteful number, since it uses less digits than its factorization.

201430431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16526 (or 16523 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 201430431 is about 14192.6188915225. The cubic root of 201430431 is about 586.1944388101.

Adding to 201430431 its reverse (134034102), we get a palindrome (335464533).

The spelling of 201430431 in words is "two hundred one million, four hundred thirty thousand, four hundred thirty-one".