201231230 has 32 divisors (see below), whose sum is σ = 374830848. Its totient is φ = 77702400.

The previous prime is 201231229. The next prime is 201231269. The reversal of 201231230 is 32132102.

It is a happy number.

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 15 ways as a sum of consecutive naturals, for example, 235484 + ... + 236336.

It is an arithmetic number, because the mean of its divisors is an integer number (11713464).

Almost surely, 2^201231230 is an apocalyptic number.

201231230 is a deficient number, since it is larger than the sum of its proper divisors (173599618).

201231230 is a wasteful number, since it uses less digits than its factorization.

201231230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1652.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 201231230 is about 14185.5993881119. The cubic root of 201231230 is about 586.0011395956.

Adding to 201231230 its reverse (32132102), we get a palindrome (233363332).

The spelling of 201231230 in words is "two hundred one million, two hundred thirty-one thousand, two hundred thirty".