23420424012240 has 320 divisors, whose sum is σ = 81182939959296. Its totient is φ = 5554756263936.

The previous prime is 23420424012229. The next prime is 23420424012299. The reversal of 23420424012240 is 4221042402432.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 23420424012198 and 23420424012207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6285237 + ... + 9292203.

Almost surely, 2^{23420424012240} is an apocalyptic number.

23420424012240 is a gapful number since it is divisible by the number (20) 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 23420424012240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40591469979648).

23420424012240 is an abundant number, since it is smaller than the sum of its proper divisors (57762515947056).

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

23420424012240 is a wasteful number, since it uses less digits than its factorization.

23420424012240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3007106 (or 3007100 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 23420424012240 its reverse (4221042402432), we get a palindrome (27641466414672).

The spelling of 23420424012240 in words is "twenty-three trillion, four hundred twenty billion, four hundred twenty-four million, twelve thousand, two hundred forty".