20203131300000 has 2304 divisors, whose sum is σ = 80962418073600. Its totient is φ = 4354560000000.

The previous prime is 20203131299957. The next prime is 20203131300017. The reversal of 20203131300000 is 313130202.

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

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 383 ways as a sum of consecutive naturals, for example, 74550299865 + ... + 74550300135.

It is an arithmetic number, because the mean of its divisors is an integer number (35139938400).

Almost surely, 2^{20203131300000} is an apocalyptic number.

20203131300000 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 20203131300000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40481209036800).

20203131300000 is an abundant number, since it is smaller than the sum of its proper divisors (60759286773600).

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

20203131300000 is a wasteful number, since it uses less digits than its factorization.

20203131300000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409 (or 381 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 20203131300000 its reverse (313130202), we get a palindrome (20203444430202).

The spelling of 20203131300000 in words is "twenty trillion, two hundred three billion, one hundred thirty-one million, three hundred thousand".