13020172343 has 8 divisors (see below), whose sum is σ = 13138902000. Its totient is φ = 12901860928.

The previous prime is 13020172309. The next prime is 13020172367. The reversal of 13020172343 is 34327102031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13020172343 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 (13020172393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41846 + ... + 166707.

It is an arithmetic number, because the mean of its divisors is an integer number (1642362750).

Almost surely, 2^13020172343 is an apocalyptic number.

13020172343 is a deficient number, since it is larger than the sum of its proper divisors (118729657).

13020172343 is a wasteful number, since it uses less digits than its factorization.

13020172343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209121.

The product of its (nonzero) digits is 3024, while the sum is 26.

Adding to 13020172343 its reverse (34327102031), we get a palindrome (47347274374).

The spelling of 13020172343 in words is "thirteen billion, twenty million, one hundred seventy-two thousand, three hundred forty-three".