2111000123 has 8 divisors (see below), whose sum is σ = 2164034448. Its totient is φ = 2058454944.

The previous prime is 2111000113. The next prime is 2111000131. The reversal of 2111000123 is 3210001112.

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 2111000123 - 2⁴ = 2111000107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2111000113) 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, 113540 + ... + 130817.

It is an arithmetic number, because the mean of its divisors is an integer number (270504306).

Almost surely, 2^2111000123 is an apocalyptic number.

2111000123 is a deficient number, since it is larger than the sum of its proper divisors (53034325).

2111000123 is a wasteful number, since it uses less digits than its factorization.

2111000123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244573.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 2111000123 is about 45945.6213691795. The cubic root of 2111000123 is about 1282.8112290910.

Adding to 2111000123 its reverse (3210001112), we get a palindrome (5321001235).

The spelling of 2111000123 in words is "two billion, one hundred eleven million, one hundred twenty-three", and thus it is an aban number.