20123124424000 has 112 divisors (see below), whose sum is σ = 53668373116176. Its totient is φ = 7430076672000.

The previous prime is 20123124423989. The next prime is 20123124424001. The reversal of 20123124424000 is 42442132102.

It can be written as a sum of positive squares in 8 ways, for example, as 3232602627136 + 16890521796864 = 1797944^2 + 4109808^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20123124424001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96641791 + ... + 96849790.

It is an arithmetic number, because the mean of its divisors is an integer number (479181902823).

Almost surely, 2^{20123124424000} is an apocalyptic number.

20123124424000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20123124424000 is an abundant number, since it is smaller than the sum of its proper divisors (33545248692176).

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

20123124424000 is a wasteful number, since it uses less digits than its factorization.

20123124424000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193491621 (or 193491601 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 20123124424000 its reverse (42442132102), we get a palindrome (20165566556102).

The spelling of 20123124424000 in words is "twenty trillion, one hundred twenty-three billion, one hundred twenty-four million, four hundred twenty-four thousand".