12501273147 has 12 divisors (see below), whose sum is σ = 18321425640. Its totient is φ = 7576528960.

The previous prime is 12501273143. The next prime is 12501273149. The reversal of 12501273147 is 74137210521.

It is not a de Polignac number, because 12501273147 - 2² = 12501273143 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (12501273143) 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, 17219022 + ... + 17219747.

It is an arithmetic number, because the mean of its divisors is an integer number (1526785470).

Almost surely, 2^12501273147 is an apocalyptic number.

12501273147 is a deficient number, since it is larger than the sum of its proper divisors (5820152493).

12501273147 is a wasteful number, since it uses less digits than its factorization.

12501273147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34438794 (or 34438783 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 33.

Adding to 12501273147 its reverse (74137210521), we get a palindrome (86638483668).

The spelling of 12501273147 in words is "twelve billion, five hundred one million, two hundred seventy-three thousand, one hundred forty-seven".