20324121252 has 48 divisors (see below), whose sum is σ = 47976297600. Its totient is φ = 6695965440.

The previous prime is 20324121221. The next prime is 20324121253. The reversal of 20324121252 is 25212142302.

It is not an unprimeable number, because it can be changed into a prime (20324121253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 515977 + ... + 553967.

It is an arithmetic number, because the mean of its divisors is an integer number (999506200).

Almost surely, 2^20324121252 is an apocalyptic number.

It is an amenable number.

20324121252 is an abundant number, since it is smaller than the sum of its proper divisors (27652176348).

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

20324121252 is a wasteful number, since it uses less digits than its factorization.

20324121252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38516 (or 38514 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 20324121252 its reverse (25212142302), we get a palindrome (45536263554).

The spelling of 20324121252 in words is "twenty billion, three hundred twenty-four million, one hundred twenty-one thousand, two hundred fifty-two".