201231230232 has 32 divisors (see below), whose sum is σ = 503107138800. Its totient is φ = 67073201664.

The previous prime is 201231230227. The next prime is 201231230237. The reversal of 201231230232 is 232032132102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (201231230227) and next prime (201231230237).

It is a junction number, because it is equal to n+sod(n) for n = 201231230199 and 201231230208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201231230237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198244 + ... + 664652.

Almost surely, 2^201231230232 is an apocalyptic number.

It is an amenable number.

201231230232 is an abundant number, since it is smaller than the sum of its proper divisors (301875908568).

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

201231230232 is a wasteful number, since it uses less digits than its factorization.

201231230232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484395 (or 484391 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 201231230232 its reverse (232032132102), we get a palindrome (433263362334).

The spelling of 201231230232 in words is "two hundred one billion, two hundred thirty-one million, two hundred thirty thousand, two hundred thirty-two".