201431230 has 64 divisors (see below), whose sum is σ = 486839808. Its totient is φ = 57951360.

The previous prime is 201431177. The next prime is 201431231. The reversal of 201431230 is 32134102.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201431231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52 + ... + 20071.

It is an arithmetic number, because the mean of its divisors is an integer number (7606872).

Almost surely, 2^201431230 is an apocalyptic number.

201431230 is an abundant number, since it is smaller than the sum of its proper divisors (285408578).

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

201431230 is a wasteful number, since it uses less digits than its factorization.

201431230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20161.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 201431230 is about 14192.6470399288. The cubic root of 201431230 is about 586.1952138812.

Adding to 201431230 its reverse (32134102), we get a palindrome (233565332).

The spelling of 201431230 in words is "two hundred one million, four hundred thirty-one thousand, two hundred thirty".