12503215345 has 8 divisors (see below), whose sum is σ = 15011640000. Its totient is φ = 9997384560.

The previous prime is 12503215339. The next prime is 12503215349. The reversal of 12503215345 is 54351230521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12503215345 - 2⁵ = 12503215313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12503215349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 637845 + ... + 657154.

It is an arithmetic number, because the mean of its divisors is an integer number (1876455000).

Almost surely, 2^12503215345 is an apocalyptic number.

It is an amenable number.

12503215345 is a deficient number, since it is larger than the sum of its proper divisors (2508424655).

12503215345 is a wasteful number, since it uses less digits than its factorization.

12503215345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1296935.

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 12503215345 its reverse (54351230521), we get a palindrome (66854445866).

The spelling of 12503215345 in words is "twelve billion, five hundred three million, two hundred fifteen thousand, three hundred forty-five".