1312532513225 has 48 divisors (see below), whose sum is σ = 1645958651904. Its totient is φ = 1038230376000.

The previous prime is 1312532513219. The next prime is 1312532513251. The reversal of 1312532513225 is 5223152352131.

It is not a de Polignac number, because 1312532513225 - 2²⁴ = 1312515736009 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 679715510 + ... + 679717440.

It is an arithmetic number, because the mean of its divisors is an integer number (34290805248).

Almost surely, 2^{1312532513225} is an apocalyptic number.

It is an amenable number.

1312532513225 is a deficient number, since it is larger than the sum of its proper divisors (333426138679).

1312532513225 is a wasteful number, since it uses less digits than its factorization.

1312532513225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2918 (or 2913 counting only the distinct ones).

The product of its digits is 54000, while the sum is 35.

Adding to 1312532513225 its reverse (5223152352131), we get a palindrome (6535684865356).

The spelling of 1312532513225 in words is "one trillion, three hundred twelve billion, five hundred thirty-two million, five hundred thirteen thousand, two hundred twenty-five".