2112432123 has 8 divisors (see below), whose sum is σ = 2913699600. Its totient is φ = 1359726368.

The previous prime is 2112432109. The next prime is 2112432137. The reversal of 2112432123 is 3212342112.

It is an interprime number because it is at equal distance from previous prime (2112432109) and next prime (2112432137).

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 2112432123 - 2⁴ = 2112432107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2112432123.

It is not an unprimeable number, because it can be changed into a prime (2112432323) 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, 12140328 + ... + 12140501.

It is an arithmetic number, because the mean of its divisors is an integer number (364212450).

Almost surely, 2^2112432123 is an apocalyptic number.

2112432123 is a deficient number, since it is larger than the sum of its proper divisors (801267477).

2112432123 is a wasteful number, since it uses less digits than its factorization.

2112432123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24280861.

The product of its digits is 576, while the sum is 21.

The square root of 2112432123 is about 45961.2023667789. The cubic root of 2112432123 is about 1283.1012291472.

Adding to 2112432123 its reverse (3212342112), we get a palindrome (5324774235).

The spelling of 2112432123 in words is "two billion, one hundred twelve million, four hundred thirty-two thousand, one hundred twenty-three".