2111424139 has 4 divisors (see below), whose sum is σ = 2303371800. Its totient is φ = 1919476480.

The previous prime is 2111424137. The next prime is 2111424169. The reversal of 2111424139 is 9314241112.

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

It is a cyclic number.

It is not a de Polignac number, because 2111424139 - 2¹ = 2111424137 is a prime.

It is a super-2 number, since 2×2111424139² = 8916223789503782642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2111424137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95973814 + ... + 95973835.

It is an arithmetic number, because the mean of its divisors is an integer number (575842950).

Almost surely, 2^2111424139 is an apocalyptic number.

2111424139 is a deficient number, since it is larger than the sum of its proper divisors (191947661).

2111424139 is a wasteful number, since it uses less digits than its factorization.

2111424139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191947660.

The product of its digits is 1728, while the sum is 28.

The square root of 2111424139 is about 45950.2354618559. The cubic root of 2111424139 is about 1282.8971119333.

The spelling of 2111424139 in words is "two billion, one hundred eleven million, four hundred twenty-four thousand, one hundred thirty-nine".