13431343020 has 24 divisors (see below), whose sum is σ = 37607760624. Its totient is φ = 3581691456.

The previous prime is 13431343019. The next prime is 13431343049. The reversal of 13431343020 is 2034313431.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111927799 + ... + 111927918.

It is an arithmetic number, because the mean of its divisors is an integer number (1566990026).

Almost surely, 2^13431343020 is an apocalyptic number.

13431343020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13431343020 is an abundant number, since it is smaller than the sum of its proper divisors (24176417604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13431343020 is a wasteful number, since it uses less digits than its factorization.

13431343020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223855729 (or 223855727 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 13431343020 its reverse (2034313431), we get a palindrome (15465656451).

The spelling of 13431343020 in words is "thirteen billion, four hundred thirty-one million, three hundred forty-three thousand, twenty".