2123432134 has 8 divisors (see below), whose sum is σ = 3352787640. Its totient is φ = 1005836256.

The previous prime is 2123432123. The next prime is 2123432137. The reversal of 2123432134 is 4312343212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2123432099 and 2123432108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123432137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27939859 + ... + 27939934.

It is an arithmetic number, because the mean of its divisors is an integer number (419098455).

Almost surely, 2^2123432134 is an apocalyptic number.

2123432134 is a deficient number, since it is larger than the sum of its proper divisors (1229355506).

2123432134 is a wasteful number, since it uses less digits than its factorization.

2123432134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55879814.

The product of its digits is 3456, while the sum is 25.

The square root of 2123432134 is about 46080.7132540285. The cubic root of 2123432134 is about 1285.3245273388.

Adding to 2123432134 its reverse (4312343212), we get a palindrome (6435775346).

The spelling of 2123432134 in words is "two billion, one hundred twenty-three million, four hundred thirty-two thousand, one hundred thirty-four".