23432431232 has 128 divisors (see below), whose sum is σ = 54928419840. Its totient is φ = 9749495808.

The previous prime is 23432431213. The next prime is 23432431277. The reversal of 23432431232 is 23213423432.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 23432431195 and 23432431204.

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, 4603793 + ... + 4608879.

It is an arithmetic number, because the mean of its divisors is an integer number (429128280).

Almost surely, 2^23432431232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23432431232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27464209920).

23432431232 is an abundant number, since it is smaller than the sum of its proper divisors (31495988608).

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

23432431232 is an equidigital number, since it uses as much as digits as its factorization.

23432431232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5258 (or 5246 counting only the distinct ones).

The product of its digits is 20736, while the sum is 29.

Adding to 23432431232 its reverse (23213423432), we get a palindrome (46645854664).

The spelling of 23432431232 in words is "twenty-three billion, four hundred thirty-two million, four hundred thirty-one thousand, two hundred thirty-two".