201321245124 has 48 divisors (see below), whose sum is σ = 522501268800. Its totient is φ = 67035428928.

The previous prime is 201321245123. The next prime is 201321245131. The reversal of 201321245124 is 421542123102.

201321245124 is a `hidden beast` number, since 2 + 0 + 132 + 12 + 4 + 512 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (201321245123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 893514 + ... + 1095905.

It is an arithmetic number, because the mean of its divisors is an integer number (10885443100).

Almost surely, 2^201321245124 is an apocalyptic number.

It is an amenable number.

201321245124 is an abundant number, since it is smaller than the sum of its proper divisors (321180023676).

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

201321245124 is a wasteful number, since it uses less digits than its factorization.

201321245124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1990369 (or 1990361 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 201321245124 its reverse (421542123102), we get a palindrome (622863368226).

The spelling of 201321245124 in words is "two hundred one billion, three hundred twenty-one million, two hundred forty-five thousand, one hundred twenty-four".