12531250330361 has 4 divisors (see below), whose sum is σ = 14321428948992. Its totient is φ = 10741071711732.

The previous prime is 12531250330351. The next prime is 12531250330363. The reversal of 12531250330361 is 16303305213521.

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 12531250330361 - 2¹⁰ = 12531250329337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12531250330363) 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, 895089309305 + ... + 895089309318.

It is an arithmetic number, because the mean of its divisors is an integer number (3580357237248).

Almost surely, 2^{12531250330361} is an apocalyptic number.

It is an amenable number.

12531250330361 is a deficient number, since it is larger than the sum of its proper divisors (1790178618631).

12531250330361 is an equidigital number, since it uses as much as digits as its factorization.

12531250330361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1790178618630.

The product of its (nonzero) digits is 48600, while the sum is 35.

Adding to 12531250330361 its reverse (16303305213521), we get a palindrome (28834555543882).

The spelling of 12531250330361 in words is "twelve trillion, five hundred thirty-one billion, two hundred fifty million, three hundred thirty thousand, three hundred sixty-one".