1020013102020 has 192 divisors, whose sum is σ = 3267487641600. Its totient is φ = 235335513600.

The previous prime is 1020013102007. The next prime is 1020013102021. The reversal of 1020013102020 is 202013100201.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1020013101987 and 1020013102005.

It is not an unprimeable number, because it can be changed into a prime (1020013102021) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2851990 + ... + 3189650.

It is an arithmetic number, because the mean of its divisors is an integer number (17018164800).

Almost surely, 2^{1020013102020} is an apocalyptic number.

1020013102020 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 1020013102020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1633743820800).

1020013102020 is an abundant number, since it is smaller than the sum of its proper divisors (2247474539580).

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

1020013102020 is a wasteful number, since it uses less digits than its factorization.

1020013102020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337906 (or 337904 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 1020013102020 its reverse (202013100201), we get a palindrome (1222026202221).

The spelling of 1020013102020 in words is "one trillion, twenty billion, thirteen million, one hundred two thousand, twenty".