13121152005 has 16 divisors (see below), whose sum is σ = 22608754560. Its totient is φ = 6459643968.

The previous prime is 13121152001. The next prime is 13121152049. The reversal of 13121152005 is 50025112131.

It is not a de Polignac number, because 13121152005 - 2² = 13121152001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13121152001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33643785 + ... + 33644174.

It is an arithmetic number, because the mean of its divisors is an integer number (1413047160).

Almost surely, 2^13121152005 is an apocalyptic number.

13121152005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13121152005 is a deficient number, since it is larger than the sum of its proper divisors (9487602555).

13121152005 is a wasteful number, since it uses less digits than its factorization.

13121152005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67287980.

The product of its (nonzero) digits is 300, while the sum is 21.

Adding to 13121152005 its reverse (50025112131), we get a palindrome (63146264136).

The spelling of 13121152005 in words is "thirteen billion, one hundred twenty-one million, one hundred fifty-two thousand, five".