201231210 has 32 divisors (see below), whose sum is σ = 511365312. Its totient is φ = 50504960.

The previous prime is 201231181. The next prime is 201231211. The reversal of 201231210 is 12132102.

It is not an unprimeable number, because it can be changed into a prime (201231211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196776 + ... + 197795.

It is an arithmetic number, because the mean of its divisors is an integer number (15980166).

Almost surely, 2^201231210 is an apocalyptic number.

201231210 is an abundant number, since it is smaller than the sum of its proper divisors (310134102).

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

201231210 is a wasteful number, since it uses less digits than its factorization.

201231210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394598.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 201231210 is about 14185.5986831716. The cubic root of 201231210 is about 586.0011201817.

Adding to 201231210 its reverse (12132102), we get a palindrome (213363312).

The spelling of 201231210 in words is "two hundred one million, two hundred thirty-one thousand, two hundred ten".