20103122310000 has 400 divisors, whose sum is σ = 66824925978624. Its totient is φ = 5202216576000.

The previous prime is 20103122309989. The next prime is 20103122310017. The reversal of 20103122310000 is 1322130102.

It is a tau number, because it is divible by the number of its divisors (400).

It is a super-2 number, since 2×20103122310000² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 425106357 + ... + 425153643.

Almost surely, 2^{20103122310000} is an apocalyptic number.

20103122310000 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 20103122310000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33412462989312).

20103122310000 is an abundant number, since it is smaller than the sum of its proper divisors (46721803668624).

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

20103122310000 is a wasteful number, since it uses less digits than its factorization.

20103122310000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47738 (or 47717 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20103122310000 its reverse (1322130102), we get a palindrome (20104444440102).

The spelling of 20103122310000 in words is "twenty trillion, one hundred three billion, one hundred twenty-two million, three hundred ten thousand".