21441433242130 has 64 divisors (see below), whose sum is σ = 43564058772480. Its totient is φ = 7526463033600.

The previous prime is 21441433242079. The next prime is 21441433242179. The reversal of 21441433242130 is 3124233414412.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14715232 + ... + 16106548.

It is an arithmetic number, because the mean of its divisors is an integer number (680688418320).

Almost surely, 2^{21441433242130} is an apocalyptic number.

21441433242130 is an abundant number, since it is smaller than the sum of its proper divisors (22122625530350).

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

21441433242130 is a wasteful number, since it uses less digits than its factorization.

21441433242130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396195.

The product of its (nonzero) digits is 55296, while the sum is 34.

Adding to 21441433242130 its reverse (3124233414412), we get a palindrome (24565666656542).

The spelling of 21441433242130 in words is "twenty-one trillion, four hundred forty-one billion, four hundred thirty-three million, two hundred forty-two thousand, one hundred thirty".