2111320273556 has 96 divisors (see below), whose sum is σ = 4220597767680. Its totient is φ = 917159040000.

The previous prime is 2111320273529. The next prime is 2111320273561. The reversal of 2111320273556 is 6553720231112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17730536 + ... + 17849216.

It is an arithmetic number, because the mean of its divisors is an integer number (43964560080).

Almost surely, 2^{2111320273556} is an apocalyptic number.

2111320273556 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2111320273556 is a deficient number, since it is larger than the sum of its proper divisors (2109277494124).

2111320273556 is a wasteful number, since it uses less digits than its factorization.

2111320273556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119025 (or 119023 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 38.

The spelling of 2111320273556 in words is "two trillion, one hundred eleven billion, three hundred twenty million, two hundred seventy-three thousand, five hundred fifty-six".