20123243353024 has 112 divisors (see below), whose sum is σ = 46573766136000. Its totient is φ = 8623179522048.

The previous prime is 20123243353019. The next prime is 20123243353043. The reversal of 20123243353024 is 42035334232102.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

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, 192093492 + ... + 192198220.

Almost surely, 2^{20123243353024} 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 20123243353024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23286883068000).

20123243353024 is an abundant number, since it is smaller than the sum of its proper divisors (26450522782976).

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

20123243353024 is an equidigital number, since it uses as much as digits as its factorization.

20123243353024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113515 (or 113491 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 34.

Adding to 20123243353024 its reverse (42035334232102), we get a palindrome (62158577585126).

The spelling of 20123243353024 in words is "twenty trillion, one hundred twenty-three billion, two hundred forty-three million, three hundred fifty-three thousand, twenty-four".