13404503431 has 16 divisors (see below), whose sum is σ = 15401518848. Its totient is φ = 11547131200.

The previous prime is 13404503419. The next prime is 13404503459. The reversal of 13404503431 is 13430540431.

It is not a de Polignac number, because 13404503431 - 2³³ = 4814568839 is a prime.

It is a super-2 number, since 2×13404503431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13404503431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13404503491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220510 + ... + 274651.

It is an arithmetic number, because the mean of its divisors is an integer number (962594928).

Almost surely, 2^13404503431 is an apocalyptic number.

13404503431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13404503431 is a deficient number, since it is larger than the sum of its proper divisors (1997015417).

13404503431 is a wasteful number, since it uses less digits than its factorization.

13404503431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495302.

The product of its (nonzero) digits is 8640, while the sum is 28.

The spelling of 13404503431 in words is "thirteen billion, four hundred four million, five hundred three thousand, four hundred thirty-one".