13109852217 has 32 divisors (see below), whose sum is σ = 22008812544. Its totient is φ = 6742872000.

The previous prime is 13109852113. The next prime is 13109852219. The reversal of 13109852217 is 71225890131.

It is a happy number.

It is not a de Polignac number, because 13109852217 - 2¹⁰ = 13109851193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13109852219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 257623 + ... + 304284.

It is an arithmetic number, because the mean of its divisors is an integer number (687775392).

Almost surely, 2^13109852217 is an apocalyptic number.

It is an amenable number.

13109852217 is a deficient number, since it is larger than the sum of its proper divisors (8898960327).

13109852217 is a wasteful number, since it uses less digits than its factorization.

13109852217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562029.

The product of its (nonzero) digits is 30240, while the sum is 39.

It can be divided in two parts, 131098 and 52217, that added together give a triangular number (183315 = T₆₀₅).

The spelling of 13109852217 in words is "thirteen billion, one hundred nine million, eight hundred fifty-two thousand, two hundred seventeen".