20001020102000 has 160 divisors (see below), whose sum is σ = 55818635842944. Its totient is φ = 6789596160000.

The previous prime is 20001020101967. The next prime is 20001020102017. The reversal of 20001020102000 is 20102010002.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5658497 + ... + 8486496.

Almost surely, 2^{20001020102000} is an apocalyptic number.

20001020102000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20001020102000 is an abundant number, since it is smaller than the sum of its proper divisors (35817615740944).

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

20001020102000 is a wasteful number, since it uses less digits than its factorization.

20001020102000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14145124 (or 14145108 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 20001020102000 its reverse (20102010002), we get a palindrome (20021122112002).

The spelling of 20001020102000 in words is "twenty trillion, one billion, twenty million, one hundred two thousand".