12123023222340 has 72 divisors (see below), whose sum is σ = 36830360793408. Its totient is φ = 3227778469440.

The previous prime is 12123023222339. The next prime is 12123023222369. The reversal of 12123023222340 is 4322232032121.

12123023222340 is a `hidden beast` number, since 1 + 2 + 1 + 2 + 302 + 322 + 2 + 34 + 0 = 666.

It is a super-3 number, since 3×12123023222340³ (a number of 40 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52256056 + ... + 52487535.

Almost surely, 2^{12123023222340} is an apocalyptic number.

12123023222340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12123023222340 is an abundant number, since it is smaller than the sum of its proper divisors (24707337571068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12123023222340 is a wasteful number, since it uses less digits than its factorization.

12123023222340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104744249 (or 104744244 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 12123023222340 its reverse (4322232032121), we get a palindrome (16445255254461).

The spelling of 12123023222340 in words is "twelve trillion, one hundred twenty-three billion, twenty-three million, two hundred twenty-two thousand, three hundred forty".