20001031403000 has 256 divisors, whose sum is σ = 52685799978240. Its totient is φ = 7066515456000.

The previous prime is 20001031402999. The next prime is 20001031403057. The reversal of 20001031403000 is 30413010002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20240420 + ... + 21205580.

It is an arithmetic number, because the mean of its divisors is an integer number (205803906165).

Almost surely, 2^{20001031403000} is an apocalyptic number.

20001031403000 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 20001031403000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26342899989120).

20001031403000 is an abundant number, since it is smaller than the sum of its proper divisors (32684768575240).

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

20001031403000 is a wasteful number, since it uses less digits than its factorization.

20001031403000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965275 (or 965261 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20001031403000 its reverse (30413010002), we get a palindrome (20031444413002).

The spelling of 20001031403000 in words is "twenty trillion, one billion, thirty-one million, four hundred three thousand".