13005242231 has 8 divisors (see below), whose sum is σ = 13210896384. Its totient is φ = 12799927800.

The previous prime is 13005242203. The next prime is 13005242251. The reversal of 13005242231 is 13224250031.

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-13005242231 is a prime.

It is a super-2 number, since 2×13005242231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13005242197 and 13005242206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13005242251) 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, 7205 + ... + 161438.

It is an arithmetic number, because the mean of its divisors is an integer number (1651362048).

Almost surely, 2^13005242231 is an apocalyptic number.

13005242231 is a deficient number, since it is larger than the sum of its proper divisors (205654153).

13005242231 is a wasteful number, since it uses less digits than its factorization.

13005242231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169861.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 13005242231 its reverse (13224250031), we get a palindrome (26229492262).

The spelling of 13005242231 in words is "thirteen billion, five million, two hundred forty-two thousand, two hundred thirty-one".