201232123320 has 64 divisors (see below), whose sum is σ = 603787180320. Its totient is φ = 53653827584.

The previous prime is 201232123307. The next prime is 201232123399. The reversal of 201232123320 is 23321232102.

It is a happy 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, 697252 + ... + 942668.

Almost surely, 2^201232123320 is an apocalyptic number.

201232123320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201232123320 is an abundant number, since it is smaller than the sum of its proper divisors (402555057000).

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

201232123320 is a wasteful number, since it uses less digits than its factorization.

201232123320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252264 (or 252260 counting only the distinct ones).

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

Adding to 201232123320 its reverse (23321232102), we get a palindrome (224553355422).

The spelling of 201232123320 in words is "two hundred one billion, two hundred thirty-two million, one hundred twenty-three thousand, three hundred twenty".