13500334235531 has 48 divisors (see below), whose sum is σ = 16039046049600. Its totient is φ = 11287632787200.

The previous prime is 13500334235497. The next prime is 13500334235533. The reversal of 13500334235531 is 13553243300531.

It is not a de Polignac number, because 13500334235531 - 2¹⁴ = 13500334219147 is a prime.

It is a super-2 number, since 2×13500334235531² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13500334235533) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 753736466 + ... + 753754376.

It is an arithmetic number, because the mean of its divisors is an integer number (334146792700).

Almost surely, 2^{13500334235531} is an apocalyptic number.

13500334235531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13500334235531 is a deficient number, since it is larger than the sum of its proper divisors (2538711814069).

13500334235531 is a wasteful number, since it uses less digits than its factorization.

13500334235531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19668 (or 19657 counting only the distinct ones).

The product of its (nonzero) digits is 243000, while the sum is 38.

The spelling of 13500334235531 in words is "thirteen trillion, five hundred billion, three hundred thirty-four million, two hundred thirty-five thousand, five hundred thirty-one".