13465432231 has 4 divisors (see below), whose sum is σ = 13466628000. Its totient is φ = 13464236464.

The previous prime is 13465432219. The next prime is 13465432249. The reversal of 13465432231 is 13223456431.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13465432231 - 2¹⁹ = 13464907943 is a prime.

It is a super-2 number, since 2×13465432231² (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 (13465432291) 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, 580831 + ... + 603568.

It is an arithmetic number, because the mean of its divisors is an integer number (3366657000).

Almost surely, 2^13465432231 is an apocalyptic number.

13465432231 is a deficient number, since it is larger than the sum of its proper divisors (1195769).

13465432231 is a wasteful number, since it uses less digits than its factorization.

13465432231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1195768.

The product of its digits is 51840, while the sum is 34.

Adding to 13465432231 its reverse (13223456431), we get a palindrome (26688888662).

The spelling of 13465432231 in words is "thirteen billion, four hundred sixty-five million, four hundred thirty-two thousand, two hundred thirty-one".