2131244421344 has 24 divisors (see below), whose sum is σ = 4378317345360. Its totient is φ = 1019290809856.

The previous prime is 2131244421301. The next prime is 2131244421403. The reversal of 2131244421344 is 4431244421312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1447855529 + ... + 1447857000.

It is an arithmetic number, because the mean of its divisors is an integer number (182429889390).

Almost surely, 2^{2131244421344} is an apocalyptic number.

It is an amenable number.

2131244421344 is an abundant number, since it is smaller than the sum of its proper divisors (2247072924016).

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

2131244421344 is a wasteful number, since it uses less digits than its factorization.

2131244421344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2895712562 (or 2895712554 counting only the distinct ones).

The product of its digits is 73728, while the sum is 35.

Adding to 2131244421344 its reverse (4431244421312), we get a palindrome (6562488842656).

The spelling of 2131244421344 in words is "two trillion, one hundred thirty-one billion, two hundred forty-four million, four hundred twenty-one thousand, three hundred forty-four".