12380270173 has 4 divisors (see below), whose sum is σ = 13031863360. Its totient is φ = 11728676988.

The previous prime is 12380270171. The next prime is 12380270183. The reversal of 12380270173 is 37107208321.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 12380270173 - 2¹ = 12380270171 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 (12380270171) 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, 325796565 + ... + 325796602.

It is an arithmetic number, because the mean of its divisors is an integer number (3257965840).

Almost surely, 2^12380270173 is an apocalyptic number.

It is an amenable number.

12380270173 is a deficient number, since it is larger than the sum of its proper divisors (651593187).

12380270173 is an equidigital number, since it uses as much as digits as its factorization.

12380270173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651593186.

The product of its (nonzero) digits is 14112, while the sum is 34.

Adding to 12380270173 its reverse (37107208321), we get a palindrome (49487478494).

The spelling of 12380270173 in words is "twelve billion, three hundred eighty million, two hundred seventy thousand, one hundred seventy-three".