23432421012 has 288 divisors, whose sum is σ = 75981755136. Its totient is φ = 5465180160.

The previous prime is 23432420987. The next prime is 23432421031. The reversal of 23432421012 is 21012423432.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4886488 + ... + 4891280.

Almost surely, 2^23432421012 is an apocalyptic number.

23432421012 is a gapful number since it is divisible by the number (22) 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 23432421012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37990877568).

23432421012 is an abundant number, since it is smaller than the sum of its proper divisors (52549334124).

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

23432421012 is a wasteful number, since it uses less digits than its factorization.

23432421012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4879 (or 4866 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 23432421012 its reverse (21012423432), we get a palindrome (44444844444).

It can be divided in two parts, 23432 and 421012, that added together give a palindrome (444444).

The spelling of 23432421012 in words is "twenty-three billion, four hundred thirty-two million, four hundred twenty-one thousand, twelve".