13512405345 has 16 divisors (see below), whose sum is σ = 21623291712. Its totient is φ = 7205468480.

The previous prime is 13512405343. The next prime is 13512405353. The reversal of 13512405345 is 54350421531.

13512405345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13512405345 - 2¹ = 13512405343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13512405343) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 30274 + ... + 167156.

It is an arithmetic number, because the mean of its divisors is an integer number (1351455732).

Almost surely, 2^13512405345 is an apocalyptic number.

13512405345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13512405345 is a deficient number, since it is larger than the sum of its proper divisors (8110886367).

13512405345 is a wasteful number, since it uses less digits than its factorization.

13512405345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143472.

The product of its (nonzero) digits is 36000, while the sum is 33.

Adding to 13512405345 its reverse (54350421531), we get a palindrome (67862826876).

The spelling of 13512405345 in words is "thirteen billion, five hundred twelve million, four hundred five thousand, three hundred forty-five".