2120111983 has 8 divisors (see below), whose sum is σ = 2316756816. Its totient is φ = 1924118400.

The previous prime is 2120111923. The next prime is 2120111993. The reversal of 2120111983 is 3891110212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2120111983 - 2⁹ = 2120111471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120111923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155988 + ... + 169033.

It is an arithmetic number, because the mean of its divisors is an integer number (289594602).

Almost surely, 2^2120111983 is an apocalyptic number.

2120111983 is a deficient number, since it is larger than the sum of its proper divisors (196644833).

2120111983 is a wasteful number, since it uses less digits than its factorization.

2120111983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325625.

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 2120111983 is about 46044.6737744986. The cubic root of 2120111983 is about 1284.6542763247.

The spelling of 2120111983 in words is "two billion, one hundred twenty million, one hundred eleven thousand, nine hundred eighty-three".