2124117111 has 4 divisors (see below), whose sum is σ = 2832156152. Its totient is φ = 1416078072.

The previous prime is 2124117109. The next prime is 2124117113. The reversal of 2124117111 is 1117114212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2124117109) and next prime (2124117113).

It is not a de Polignac number, because 2124117111 - 2¹ = 2124117109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2124117113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 354019516 + ... + 354019521.

It is an arithmetic number, because the mean of its divisors is an integer number (708039038).

Almost surely, 2^2124117111 is an apocalyptic number.

2124117111 is a deficient number, since it is larger than the sum of its proper divisors (708039041).

2124117111 is an equidigital number, since it uses as much as digits as its factorization.

2124117111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708039040.

The product of its digits is 112, while the sum is 21.

The square root of 2124117111 is about 46088.1450158281. The cubic root of 2124117111 is about 1285.4627191955.

The spelling of 2124117111 in words is "two billion, one hundred twenty-four million, one hundred seventeen thousand, one hundred eleven".