23121402302424 has 16 divisors (see below), whose sum is σ = 57803505756120. Its totient is φ = 7707134100800.

The previous prime is 23121402302381. The next prime is 23121402302429. The reversal of 23121402302424 is 42420320412132.

It is a junction number, because it is equal to n+sod(n) for n = 23121402302391 and 23121402302400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23121402302429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 481695881277 + ... + 481695881324.

Almost surely, 2^{23121402302424} is an apocalyptic number.

23121402302424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

23121402302424 is an abundant number, since it is smaller than the sum of its proper divisors (34682103453696).

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

23121402302424 is a wasteful number, since it uses less digits than its factorization.

23121402302424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963391762610 (or 963391762606 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 23121402302424 its reverse (42420320412132), we get a palindrome (65541722714556).

The spelling of 23121402302424 in words is "twenty-three trillion, one hundred twenty-one billion, four hundred two million, three hundred two thousand, four hundred twenty-four".