13112311533405 has 32 divisors (see below), whose sum is σ = 23979001847808. Its totient is φ = 5993648654400.

The previous prime is 13112311533287. The next prime is 13112311533427. The reversal of 13112311533405 is 50433511321131.

It is not a de Polignac number, because 13112311533405 - 2¹² = 13112311529309 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4589581 + ... + 6876690.

It is an arithmetic number, because the mean of its divisors is an integer number (749343807744).

Almost surely, 2^{13112311533405} is an apocalyptic number.

13112311533405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13112311533405 is a deficient number, since it is larger than the sum of its proper divisors (10866690314403).

13112311533405 is a wasteful number, since it uses less digits than its factorization.

13112311533405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11477177.

The product of its (nonzero) digits is 16200, while the sum is 33.

Adding to 13112311533405 its reverse (50433511321131), we get a palindrome (63545822854536).

The spelling of 13112311533405 in words is "thirteen trillion, one hundred twelve billion, three hundred eleven million, five hundred thirty-three thousand, four hundred five".