13423554431 has 16 divisors (see below), whose sum is σ = 15412674816. Its totient is φ = 11452409856.

The previous prime is 13423554407. The next prime is 13423554449. The reversal of 13423554431 is 13445532431.

It is a cyclic number.

It is not a de Polignac number, because 13423554431 - 2¹⁸ = 13423292287 is a prime.

It is a super-2 number, since 2×13423554431² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13423554391 and 13423554400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13423554401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1687295 + ... + 1695231.

It is an arithmetic number, because the mean of its divisors is an integer number (963292176).

Almost surely, 2^13423554431 is an apocalyptic number.

13423554431 is a deficient number, since it is larger than the sum of its proper divisors (1989120385).

13423554431 is an equidigital number, since it uses as much as digits as its factorization.

13423554431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9038.

The product of its digits is 86400, while the sum is 35.

The spelling of 13423554431 in words is "thirteen billion, four hundred twenty-three million, five hundred fifty-four thousand, four hundred thirty-one".