13505040101 has 4 divisors (see below), whose sum is σ = 15434331552. Its totient is φ = 11575748652.

The previous prime is 13505040089. The next prime is 13505040139. The reversal of 13505040101 is 10104050531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10104050531 = 127 ⋅79559453.

It is a cyclic number.

It is not a de Polignac number, because 13505040101 - 2⁶ = 13505040037 is a prime.

It is a super-2 number, since 2×13505040101² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13505040181) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 964645715 + ... + 964645728.

It is an arithmetic number, because the mean of its divisors is an integer number (3858582888).

Almost surely, 2^13505040101 is an apocalyptic number.

It is an amenable number.

13505040101 is a deficient number, since it is larger than the sum of its proper divisors (1929291451).

13505040101 is an equidigital number, since it uses as much as digits as its factorization.

13505040101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1929291450.

The product of its (nonzero) digits is 300, while the sum is 20.

Adding to 13505040101 its reverse (10104050531), we get a palindrome (23609090632).

The spelling of 13505040101 in words is "thirteen billion, five hundred five million, forty thousand, one hundred one".