13023123432 has 64 divisors (see below), whose sum is σ = 35643317760. Its totient is φ = 3932433600.

The previous prime is 13023123397. The next prime is 13023123461. The reversal of 13023123432 is 23432132031.

It is a super-3 number, since 3×13023123432³ (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 12444 + ... + 161867.

It is an arithmetic number, because the mean of its divisors is an integer number (556926840).

Almost surely, 2^13023123432 is an apocalyptic number.

13023123432 is a gapful number since it is divisible by the number (12) 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 13023123432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17821658880).

13023123432 is an abundant number, since it is smaller than the sum of its proper divisors (22620194328).

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

13023123432 is a wasteful number, since it uses less digits than its factorization.

13023123432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174614 (or 174610 counting only the distinct ones).

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

Adding to 13023123432 its reverse (23432132031), we get a palindrome (36455255463).

The spelling of 13023123432 in words is "thirteen billion, twenty-three million, one hundred twenty-three thousand, four hundred thirty-two".