12140123245 has 16 divisors (see below), whose sum is σ = 15338269440. Its totient is φ = 9198909504.

The previous prime is 12140123239. The next prime is 12140123257. The reversal of 12140123245 is 54232104121.

It is a cyclic number.

It is not a de Polignac number, because 12140123245 - 2²¹ = 12138026093 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 529612 + ... + 552058.

It is an arithmetic number, because the mean of its divisors is an integer number (958641840).

Almost surely, 2^12140123245 is an apocalyptic number.

It is an amenable number.

12140123245 is a deficient number, since it is larger than the sum of its proper divisors (3198146195).

12140123245 is a wasteful number, since it uses less digits than its factorization.

12140123245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28164.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 12140123245 its reverse (54232104121), we get a palindrome (66372227366).

The spelling of 12140123245 in words is "twelve billion, one hundred forty million, one hundred twenty-three thousand, two hundred forty-five".