13123245015 has 24 divisors (see below), whose sum is σ = 22753746288. Its totient is φ = 6996975360.

The previous prime is 13123245011. The next prime is 13123245067. The reversal of 13123245015 is 51054232131.

13123245015 is a `hidden beast` number, since 13 + 123 + 24 + 501 + 5 = 666.

It is not a de Polignac number, because 13123245015 - 2² = 13123245011 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13123245015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13123245011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 115327 + ... + 198863.

It is an arithmetic number, because the mean of its divisors is an integer number (948072762).

Almost surely, 2^13123245015 is an apocalyptic number.

13123245015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13123245015 is a deficient number, since it is larger than the sum of its proper divisors (9630501273).

13123245015 is a wasteful number, since it uses less digits than its factorization.

13123245015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87039 (or 87036 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 13123245015 its reverse (51054232131), we get a palindrome (64177477146).

The spelling of 13123245015 in words is "thirteen billion, one hundred twenty-three million, two hundred forty-five thousand, fifteen".