13431013052505 has 16 divisors (see below), whose sum is σ = 21489834544704. Its totient is φ = 7163135741120.

The previous prime is 13431013052467. The next prime is 13431013052519. The reversal of 13431013052505 is 50525031013431.

It is not a de Polignac number, because 13431013052505 - 2⁶ = 13431013052441 is a prime.

It is a super-2 number, since 2×13431013052505² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2874279 + ... + 5926508.

It is an arithmetic number, because the mean of its divisors is an integer number (1343114659044).

Almost surely, 2^{13431013052505} is an apocalyptic number.

13431013052505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13431013052505 is a deficient number, since it is larger than the sum of its proper divisors (8058821492199).

13431013052505 is a wasteful number, since it uses less digits than its factorization.

13431013052505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8902536.

The product of its (nonzero) digits is 27000, while the sum is 33.

Adding to 13431013052505 its reverse (50525031013431), we get a palindrome (63956044065936).

The spelling of 13431013052505 in words is "thirteen trillion, four hundred thirty-one billion, thirteen million, fifty-two thousand, five hundred five".