12126516753 has 12 divisors (see below), whose sum is σ = 17508107760. Its totient is φ = 7462471536.

The previous prime is 12126516751. The next prime is 12126516763. The reversal of 12126516753 is 35761562121.

It is not a de Polignac number, because 12126516753 - 2¹ = 12126516751 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12126516751) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11958583 + ... + 11959596.

It is an arithmetic number, because the mean of its divisors is an integer number (1459008980).

Almost surely, 2^12126516753 is an apocalyptic number.

12126516753 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12126516753 is a deficient number, since it is larger than the sum of its proper divisors (5381591007).

12126516753 is a wasteful number, since it uses less digits than its factorization.

12126516753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23918208 (or 23918195 counting only the distinct ones).

The product of its digits is 75600, while the sum is 39.

The spelling of 12126516753 in words is "twelve billion, one hundred twenty-six million, five hundred sixteen thousand, seven hundred fifty-three".