12507328101 has 4 divisors (see below), whose sum is σ = 16676437472. Its totient is φ = 8338218732.

The previous prime is 12507328091. The next prime is 12507328109. The reversal of 12507328101 is 10182370521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12507328101 - 2³⁰ = 11433586277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12507328109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2084554681 + ... + 2084554686.

It is an arithmetic number, because the mean of its divisors is an integer number (4169109368).

Almost surely, 2^12507328101 is an apocalyptic number.

It is an amenable number.

12507328101 is a deficient number, since it is larger than the sum of its proper divisors (4169109371).

12507328101 is an equidigital number, since it uses as much as digits as its factorization.

12507328101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4169109370.

The product of its (nonzero) digits is 3360, while the sum is 30.

Adding to 12507328101 its reverse (10182370521), we get a palindrome (22689698622).

The spelling of 12507328101 in words is "twelve billion, five hundred seven million, three hundred twenty-eight thousand, one hundred one".