12915172301 has 4 divisors (see below), whose sum is σ = 13360523100. Its totient is φ = 12469821504.

The previous prime is 12915172279. The next prime is 12915172321. The reversal of 12915172301 is 10327151921.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10327151921 = 1801 ⋅5734121.

It can be written as a sum of positive squares in 2 ways, for example, as 4913869801 + 8001302500 = 70099^2 + 89450^2 .

It is a cyclic number.

It is not a de Polignac number, because 12915172301 - 2¹⁸ = 12914910157 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 (12915172321) 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, 222675356 + ... + 222675413.

It is an arithmetic number, because the mean of its divisors is an integer number (3340130775).

Almost surely, 2^12915172301 is an apocalyptic number.

It is an amenable number.

12915172301 is a deficient number, since it is larger than the sum of its proper divisors (445350799).

12915172301 is an equidigital number, since it uses as much as digits as its factorization.

12915172301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445350798.

The product of its (nonzero) digits is 3780, while the sum is 32.

The spelling of 12915172301 in words is "twelve billion, nine hundred fifteen million, one hundred seventy-two thousand, three hundred one".