201231130 has 16 divisors (see below), whose sum is σ = 362426400. Its totient is φ = 80445712.

The previous prime is 201231127. The next prime is 201231167. The reversal of 201231130 is 31132102.

It is a self number, because there is not a number n which added to its sum of digits gives 201231130.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16197 + ... + 25783.

It is an arithmetic number, because the mean of its divisors is an integer number (22651650).

Almost surely, 2^201231130 is an apocalyptic number.

201231130 is a deficient number, since it is larger than the sum of its proper divisors (161195270).

201231130 is a wasteful number, since it uses less digits than its factorization.

201231130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11693.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 201231130 is about 14185.5958634102. The cubic root of 201231130 is about 586.0010425263.

Adding to 201231130 its reverse (31132102), we get a palindrome (232363232).

The spelling of 201231130 in words is "two hundred one million, two hundred thirty-one thousand, one hundred thirty".