12111142407 has 64 divisors (see below), whose sum is σ = 21180579840. Its totient is φ = 5980385664.

The previous prime is 12111142387. The next prime is 12111142411. The reversal of 12111142407 is 70424111121.

It is a happy number.

12111142407 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12111142407 - 2⁶ = 12111142343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111142447) by changing a digit.

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 in 63 ways as a sum of consecutive naturals, for example, 274594 + ... + 315632.

It is an arithmetic number, because the mean of its divisors is an integer number (330946560).

Almost surely, 2^12111142407 is an apocalyptic number.

12111142407 is a deficient number, since it is larger than the sum of its proper divisors (9069437433).

12111142407 is a wasteful number, since it uses less digits than its factorization.

12111142407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41132.

The product of its (nonzero) digits is 448, while the sum is 24.

Adding to 12111142407 its reverse (70424111121), we get a palindrome (82535253528).

The spelling of 12111142407 in words is "twelve billion, one hundred eleven million, one hundred forty-two thousand, four hundred seven".