13234240431 has 8 divisors (see below), whose sum is σ = 19606282160. Its totient is φ = 8822826936.

The previous prime is 13234240429. The next prime is 13234240441. The reversal of 13234240431 is 13404243231.

It is not a de Polignac number, because 13234240431 - 2¹ = 13234240429 is a prime.

It is a super-2 number, since 2×13234240431² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 490157053 = 13234240431 / (1 + 3 + 2 + 3 + 4 + 2 + 4 + 0 + 4 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13234240395 and 13234240404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13234240441) 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, 245078500 + ... + 245078553.

It is an arithmetic number, because the mean of its divisors is an integer number (2450785270).

Almost surely, 2^13234240431 is an apocalyptic number.

13234240431 is a deficient number, since it is larger than the sum of its proper divisors (6372041729).

13234240431 is an equidigital number, since it uses as much as digits as its factorization.

13234240431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490157062 (or 490157056 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 13234240431 its reverse (13404243231), we get a palindrome (26638483662).

The spelling of 13234240431 in words is "thirteen billion, two hundred thirty-four million, two hundred forty thousand, four hundred thirty-one".