13520340051 has 16 divisors (see below), whose sum is σ = 18272941440. Its totient is φ = 8891406720.

The previous prime is 13520340007. The next prime is 13520340061. The reversal of 13520340051 is 15004302531.

It is not a de Polignac number, because 13520340051 - 2⁷ = 13520339923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13520340061) 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, 22981 + ... + 166038.

It is an arithmetic number, because the mean of its divisors is an integer number (1142058840).

Almost surely, 2^13520340051 is an apocalyptic number.

13520340051 is a deficient number, since it is larger than the sum of its proper divisors (4752601389).

13520340051 is a wasteful number, since it uses less digits than its factorization.

13520340051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189346.

The product of its (nonzero) digits is 1800, while the sum is 24.

Adding to 13520340051 its reverse (15004302531), we get a palindrome (28524642582).

The spelling of 13520340051 in words is "thirteen billion, five hundred twenty million, three hundred forty thousand, fifty-one".