13132013231 has 4 divisors (see below), whose sum is σ = 13702970352. Its totient is φ = 12561056112.

The previous prime is 13132013227. The next prime is 13132013299. The reversal of 13132013231 is 13231023131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13231023131 = 233 ⋅56785507.

It is a cyclic number.

It is not a de Polignac number, because 13132013231 - 2² = 13132013227 is a prime.

It is a super-2 number, since 2×13132013231² (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 (13132013831) 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, 285478526 + ... + 285478571.

It is an arithmetic number, because the mean of its divisors is an integer number (3425742588).

Almost surely, 2^13132013231 is an apocalyptic number.

13132013231 is a deficient number, since it is larger than the sum of its proper divisors (570957121).

13132013231 is an equidigital number, since it uses as much as digits as its factorization.

13132013231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570957120.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 13132013231 its reverse (13231023131), we get a palindrome (26363036362).

The spelling of 13132013231 in words is "thirteen billion, one hundred thirty-two million, thirteen thousand, two hundred thirty-one".