1251500130005 has 16 divisors (see below), whose sum is σ = 1581661166400. Its totient is φ = 948014023680.

The previous prime is 1251500129993. The next prime is 1251500130031. The reversal of 1251500130005 is 5000310051521.

It is a happy number.

It is not a de Polignac number, because 1251500130005 - 2⁴ = 1251500129989 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3227660 + ... + 3594549.

It is an arithmetic number, because the mean of its divisors is an integer number (98853822900).

Almost surely, 2^{1251500130005} is an apocalyptic number.

It is an amenable number.

1251500130005 is a deficient number, since it is larger than the sum of its proper divisors (330161036395).

1251500130005 is a wasteful number, since it uses less digits than its factorization.

1251500130005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6824164.

The product of its (nonzero) digits is 750, while the sum is 23.

Adding to 1251500130005 its reverse (5000310051521), we get a palindrome (6251810181526).

The spelling of 1251500130005 in words is "one trillion, two hundred fifty-one billion, five hundred million, one hundred thirty thousand, five".