13231223252530 has 16 divisors (see below), whose sum is σ = 23816247346584. Its totient is φ = 5292479191680.

The previous prime is 13231223252519. The next prime is 13231223252543. The reversal of 13231223252530 is 3525232213231.

It can be written as a sum of positive squares in 4 ways, for example, as 12004208454681 + 1227014797849 = 3464709^2 + 1107707^2 .

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 7 ways as a sum of consecutive naturals, for example, 6511300 + ... + 8298160.

Almost surely, 2^{13231223252530} is an apocalyptic number.

13231223252530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13231223252530 is a deficient number, since it is larger than the sum of its proper divisors (10585024094054).

13231223252530 is a wasteful number, since it uses less digits than its factorization.

13231223252530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2527341.

The product of its (nonzero) digits is 64800, while the sum is 34.

Adding to 13231223252530 its reverse (3525232213231), we get a palindrome (16756455465761).

The spelling of 13231223252530 in words is "thirteen trillion, two hundred thirty-one billion, two hundred twenty-three million, two hundred fifty-two thousand, five hundred thirty".