20331331000002 has 96 divisors (see below), whose sum is σ = 48448536200064. Its totient is φ = 6110828121600.

The previous prime is 20331330999977. The next prime is 20331331000111. The reversal of 20331331000002 is 20000013313302.

20331331000002 is a `hidden beast` number, since 2 + 0 + 331 + 331 + 0 + 0 + 0 + 0 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14576538 + ... + 15910314.

It is an arithmetic number, because the mean of its divisors is an integer number (504672252084).

Almost surely, 2^{20331331000002} is an apocalyptic number.

20331331000002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 20331331000002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24224268100032).

20331331000002 is an abundant number, since it is smaller than the sum of its proper divisors (28117205200062).

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

20331331000002 is a wasteful number, since it uses less digits than its factorization.

20331331000002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334424 (or 1334421 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 20331331000002 its reverse (20000013313302), we get a palindrome (40331344313304).

The spelling of 20331331000002 in words is "twenty trillion, three hundred thirty-one billion, three hundred thirty-one million, two", and thus it is an aban number.