23445453122420 has 96 divisors (see below), whose sum is σ = 56521149511680. Its totient is φ = 8002437471360.

The previous prime is 23445453122387. The next prime is 23445453122473. The reversal of 23445453122420 is 2422135454432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 784665041 + ... + 784694919.

It is an arithmetic number, because the mean of its divisors is an integer number (588761974080).

Almost surely, 2^{23445453122420} is an apocalyptic number.

23445453122420 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 23445453122420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28260574755840).

23445453122420 is an abundant number, since it is smaller than the sum of its proper divisors (33075696389260).

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

23445453122420 is a wasteful number, since it uses less digits than its factorization.

23445453122420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54813 (or 54811 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 41.

Adding to 23445453122420 its reverse (2422135454432), we get a palindrome (25867588576852).

The spelling of 23445453122420 in words is "twenty-three trillion, four hundred forty-five billion, four hundred fifty-three million, one hundred twenty-two thousand, four hundred twenty".