2013121144444 has 6 divisors (see below), whose sum is σ = 3522962002784. Its totient is φ = 1006560572220.

The previous prime is 2013121144429. The next prime is 2013121144453. The reversal of 2013121144444 is 4444411213102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251640143052 + ... + 251640143059.

Almost surely, 2^{2013121144444} is an apocalyptic number.

It is an amenable number.

2013121144444 is a deficient number, since it is larger than the sum of its proper divisors (1509840858340).

2013121144444 is a wasteful number, since it uses less digits than its factorization.

2013121144444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503280286115 (or 503280286113 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 31.

Adding to 2013121144444 its reverse (4444411213102), we get a palindrome (6457532357546).

The spelling of 2013121144444 in words is "two trillion, thirteen billion, one hundred twenty-one million, one hundred forty-four thousand, four hundred forty-four".