13423043136 has 112 divisors (see below), whose sum is σ = 36758514240. Its totient is φ = 4319969280.

The previous prime is 13423043077. The next prime is 13423043147. The reversal of 13423043136 is 63134032431.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 754795 + ... + 772373.

It is an arithmetic number, because the mean of its divisors is an integer number (328201020).

Almost surely, 2^13423043136 is an apocalyptic number.

13423043136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13423043136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18379257120).

13423043136 is an abundant number, since it is smaller than the sum of its proper divisors (23335471104).

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

13423043136 is a wasteful number, since it uses less digits than its factorization.

13423043136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17732 (or 17722 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 13423043136 its reverse (63134032431), we get a palindrome (76557075567).

The spelling of 13423043136 in words is "thirteen billion, four hundred twenty-three million, forty-three thousand, one hundred thirty-six".