1020020102000 has 80 divisors (see below), whose sum is σ = 2467067371392. Its totient is φ = 407899065600.

The previous prime is 1020020101999. The next prime is 1020020102011. The reversal of 1020020102000 is 2010200201.

It is a tau number, because it is divible by the number of its divisors (80).

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 15 ways as a sum of consecutive naturals, for example, 7639817 + ... + 7772183.

Almost surely, 2^{1020020102000} is an apocalyptic number.

1020020102000 is a gapful number since it is divisible by the number (10) 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 1020020102000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1233533685696).

1020020102000 is an abundant number, since it is smaller than the sum of its proper divisors (1447047269392).

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

1020020102000 is a wasteful number, since it uses less digits than its factorization.

1020020102000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136243 (or 136227 counting only the distinct ones).

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

Adding to 1020020102000 its reverse (2010200201), we get a palindrome (1022030302201).

The spelling of 1020020102000 in words is "one trillion, twenty billion, twenty million, one hundred two thousand".