13453235431 has 4 divisors (see below), whose sum is σ = 13454619264. Its totient is φ = 13451851600.

The previous prime is 13453235387. The next prime is 13453235441.

13453235431 is nontrivially palindromic in base 10.

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 13453235431 - 2⁹ = 13453234919 is a prime.

It is a super-2 number, since 2×13453235431² (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 (13453235441) 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, 677230 + ... + 696811.

It is an arithmetic number, because the mean of its divisors is an integer number (3363654816).

Almost surely, 2^13453235431 is an apocalyptic number.

13453235431 is a deficient number, since it is larger than the sum of its proper divisors (1383833).

13453235431 is an equidigital number, since it uses as much as digits as its factorization.

13453235431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1383832.

The product of its digits is 64800, while the sum is 34.

The spelling of 13453235431 in words is "thirteen billion, four hundred fifty-three million, two hundred thirty-five thousand, four hundred thirty-one".