20421141324 has 48 divisors (see below), whose sum is σ = 48146472192. Its totient is φ = 6736122432.

The previous prime is 20421141311. The next prime is 20421141331. The reversal of 20421141324 is 42314112402.

It is a junction number, because it is equal to n+sod(n) for n = 20421141294 and 20421141303.

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, 1988547 + ... + 1998789.

It is an arithmetic number, because the mean of its divisors is an integer number (1003051504).

Almost surely, 2^20421141324 is an apocalyptic number.

It is an amenable number.

20421141324 is an abundant number, since it is smaller than the sum of its proper divisors (27725330868).

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

20421141324 is a wasteful number, since it uses less digits than its factorization.

20421141324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11966 (or 11964 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 20421141324 its reverse (42314112402), we get a palindrome (62735253726).

The spelling of 20421141324 in words is "twenty billion, four hundred twenty-one million, one hundred forty-one thousand, three hundred twenty-four".