13215501143 has 4 divisors (see below), whose sum is σ = 14232078168. Its totient is φ = 12198924120.

The previous prime is 13215501127. The next prime is 13215501163. The reversal of 13215501143 is 34110551231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34110551231 = 7937 ⋅4297663.

It is a cyclic number.

It is not a de Polignac number, because 13215501143 - 2⁴ = 13215501127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13215501163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 508288493 + ... + 508288518.

It is an arithmetic number, because the mean of its divisors is an integer number (3558019542).

Almost surely, 2^13215501143 is an apocalyptic number.

13215501143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13215501143 is a deficient number, since it is larger than the sum of its proper divisors (1016577025).

13215501143 is a wasteful number, since it uses less digits than its factorization.

13215501143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016577024.

The product of its (nonzero) digits is 1800, while the sum is 26.

The spelling of 13215501143 in words is "thirteen billion, two hundred fifteen million, five hundred one thousand, one hundred forty-three".