13345045431 has 4 divisors (see below), whose sum is σ = 17793393912. Its totient is φ = 8896696952.

The previous prime is 13345045421. The next prime is 13345045481. The reversal of 13345045431 is 13454054331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13454054331 = 3 ⋅4484684777.

It is a cyclic number.

It is not a de Polignac number, because 13345045431 - 2¹⁰ = 13345044407 is a prime.

It is a super-2 number, since 2×13345045431² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13345045392 and 13345045401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13345045421) 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, 2224174236 + ... + 2224174241.

It is an arithmetic number, because the mean of its divisors is an integer number (4448348478).

Almost surely, 2^13345045431 is an apocalyptic number.

13345045431 is a deficient number, since it is larger than the sum of its proper divisors (4448348481).

13345045431 is an equidigital number, since it uses as much as digits as its factorization.

13345045431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4448348480.

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 13345045431 its reverse (13454054331), we get a palindrome (26799099762).

The spelling of 13345045431 in words is "thirteen billion, three hundred forty-five million, forty-five thousand, four hundred thirty-one".