2113981437244 has 24 divisors (see below), whose sum is σ = 3778270755840. Its totient is φ = 1034476592496.

The previous prime is 2113981437203. The next prime is 2113981437263. The reversal of 2113981437244 is 4427341893112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9486697 + ... + 9706975.

It is an arithmetic number, because the mean of its divisors is an integer number (157427948160).

Almost surely, 2^{2113981437244} is an apocalyptic number.

It is an amenable number.

2113981437244 is a deficient number, since it is larger than the sum of its proper divisors (1664289318596).

2113981437244 is a wasteful number, since it uses less digits than its factorization.

2113981437244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271377 (or 271375 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 49.

The spelling of 2113981437244 in words is "two trillion, one hundred thirteen billion, nine hundred eighty-one million, four hundred thirty-seven thousand, two hundred forty-four".