20310125440000 has 220 divisors, whose sum is σ = 55346507329608. Its totient is φ = 7385497600000.

The previous prime is 20310125439973. The next prime is 20310125440057. The reversal of 20310125440000 is 4452101302.

It is a tau number, because it is divible by the number of its divisors (220).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5597520 + ... + 8482480.

Almost surely, 2^{20310125440000} is an apocalyptic number.

20310125440000 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 20310125440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27673253664804).

20310125440000 is an abundant number, since it is smaller than the sum of its proper divisors (35036381889608).

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

20310125440000 is an equidigital number, since it uses as much as digits as its factorization.

20310125440000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2885012 (or 2884979 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 20310125440000 its reverse (4452101302), we get a palindrome (20314577541302).

The spelling of 20310125440000 in words is "twenty trillion, three hundred ten billion, one hundred twenty-five million, four hundred forty thousand".