12123442234 has 8 divisors (see below), whose sum is σ = 18203406228. Its totient is φ = 6055640160.

The previous prime is 12123442217. The next prime is 12123442267. The reversal of 12123442234 is 43224432121.

It can be written as a sum of positive squares in 2 ways, for example, as 10523682225 + 1599760009 = 102585^2 + 39997^2 .

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

It is a super-3 number, since 3×12123442234³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3037987 + ... + 3041974.

Almost surely, 2^12123442234 is an apocalyptic number.

12123442234 is a deficient number, since it is larger than the sum of its proper divisors (6079963994).

12123442234 is an equidigital number, since it uses as much as digits as its factorization.

12123442234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6080960.

The product of its digits is 9216, while the sum is 28.

Adding to 12123442234 its reverse (43224432121), we get a palindrome (55347874355).

The spelling of 12123442234 in words is "twelve billion, one hundred twenty-three million, four hundred forty-two thousand, two hundred thirty-four".