2121003144344 has 24 divisors (see below), whose sum is σ = 4626167573340. Its totient is φ = 909001347408.

The previous prime is 2121003144343. The next prime is 2121003144347. The reversal of 2121003144344 is 4434413001212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121003144343) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2705360762 + ... + 2705361545.

Almost surely, 2^{2121003144344} is an apocalyptic number.

It is an amenable number.

2121003144344 is an abundant number, since it is smaller than the sum of its proper divisors (2505164428996).

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

2121003144344 is a wasteful number, since it uses less digits than its factorization.

2121003144344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5410722327 (or 5410722316 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 2121003144344 its reverse (4434413001212), we get a palindrome (6555416145556).

The spelling of 2121003144344 in words is "two trillion, one hundred twenty-one billion, three million, one hundred forty-four thousand, three hundred forty-four".