2127242123 has 4 divisors (see below), whose sum is σ = 2127344760. Its totient is φ = 2127139488.

The previous prime is 2127242111. The next prime is 2127242149. The reversal of 2127242123 is 3212427212.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2127242123 - 2¹⁴ = 2127225739 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2127242092 and 2127242101.

It is not an unprimeable number, because it can be changed into a prime (2127242153) 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, 8093 + ... + 65726.

It is an arithmetic number, because the mean of its divisors is an integer number (531836190).

Almost surely, 2^2127242123 is an apocalyptic number.

2127242123 is a deficient number, since it is larger than the sum of its proper divisors (102637).

2127242123 is an equidigital number, since it uses as much as digits as its factorization.

2127242123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102636.

The product of its digits is 2688, while the sum is 26.

The square root of 2127242123 is about 46122.0351133815. The cubic root of 2127242123 is about 1286.0928034196.

Adding to 2127242123 its reverse (3212427212), we get a palindrome (5339669335).

The spelling of 2127242123 in words is "two billion, one hundred twenty-seven million, two hundred forty-two thousand, one hundred twenty-three".