1020000010020 has 48 divisors (see below), whose sum is σ = 2856053027520. Its totient is φ = 271994955136.

The previous prime is 1020000009989. The next prime is 1020000010027. The reversal of 1020000010020 is 200100000201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a junction number, because it is equal to n+sod(n) for n = 1020000009990 and 1020000010008.

It is not an unprimeable number, because it can be changed into a prime (1020000010027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4014526 + ... + 4261034.

It is an arithmetic number, because the mean of its divisors is an integer number (59501104740).

Almost surely, 2^{1020000010020} is an apocalyptic number.

1020000010020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020000010020 is an abundant number, since it is smaller than the sum of its proper divisors (1836053017500).

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

1020000010020 is a wasteful number, since it uses less digits than its factorization.

1020000010020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315484 (or 315482 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 6.

Adding to 1020000010020 its reverse (200100000201), we get a palindrome (1220100010221).

The spelling of 1020000010020 in words is "one trillion, twenty billion, ten thousand, twenty".