2120123234 has 4 divisors (see below), whose sum is σ = 3180184854. Its totient is φ = 1060061616.

The previous prime is 2120123221. The next prime is 2120123249. The reversal of 2120123234 is 4323210212.

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

It can be written as a sum of positive squares in only one way, i.e., 1753515625 + 366607609 = 41875^2 + 19147^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530030807 + ... + 530030810.

Almost surely, 2^2120123234 is an apocalyptic number.

2120123234 is a deficient number, since it is larger than the sum of its proper divisors (1060061620).

2120123234 is a wasteful number, since it uses less digits than its factorization.

2120123234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060061619.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 2120123234 is about 46044.7959491624. The cubic root of 2120123234 is about 1284.6565487864.

Adding to 2120123234 its reverse (4323210212), we get a palindrome (6443333446).

The spelling of 2120123234 in words is "two billion, one hundred twenty million, one hundred twenty-three thousand, two hundred thirty-four".