201124021312 has 28 divisors (see below), whose sum is σ = 407597091840. Its totient is φ = 98422391936.

The previous prime is 201124021309. The next prime is 201124021313. The reversal of 201124021312 is 213120421102.

It is a self number, because there is not a number n which added to its sum of digits gives 201124021312.

It is not an unprimeable number, because it can be changed into a prime (201124021313) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 33428512 + ... + 33434527.

Almost surely, 2^201124021312 is an apocalyptic number.

It is an amenable number.

201124021312 is an abundant number, since it is smaller than the sum of its proper divisors (206473070528).

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

201124021312 is an equidigital number, since it uses as much as digits as its factorization.

201124021312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66863098 (or 66863088 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 201124021312 its reverse (213120421102), we get a palindrome (414244442414).

The spelling of 201124021312 in words is "two hundred one billion, one hundred twenty-four million, twenty-one thousand, three hundred twelve".