10515231325 has 6 divisors (see below), whose sum is σ = 13038886874. Its totient is φ = 8412185040.

The previous prime is 10515231277. The next prime is 10515231343. The reversal of 10515231325 is 52313251501.

10515231325 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 379977049 + 10135254276 = 19493^2 + 100674^2 .

It is not a de Polignac number, because 10515231325 - 2⁷ = 10515231197 is a prime.

It is a super-2 number, since 2×10515231325² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10515231293 and 10515231302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 210304602 + ... + 210304651.

Almost surely, 2^10515231325 is an apocalyptic number.

It is an amenable number.

10515231325 is a deficient number, since it is larger than the sum of its proper divisors (2523655549).

10515231325 is an equidigital number, since it uses as much as digits as its factorization.

10515231325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420609263 (or 420609258 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 28.

Adding to 10515231325 its reverse (52313251501), we get a palindrome (62828482826).

The spelling of 10515231325 in words is "ten billion, five hundred fifteen million, two hundred thirty-one thousand, three hundred twenty-five".