10020000001020 has 24 divisors (see below), whose sum is σ = 28056000003024. Its totient is φ = 2672000000256.

The previous prime is 10020000000961. The next prime is 10020000001021. The reversal of 10020000001020 is 2010000002001.

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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020000001021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83499999949 + ... + 83500000068.

It is an arithmetic number, because the mean of its divisors is an integer number (1169000000126).

Almost surely, 2^{10020000001020} is an apocalyptic number.

10020000001020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10020000001020 is an abundant number, since it is smaller than the sum of its proper divisors (18036000002004).

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

10020000001020 is a wasteful number, since it uses less digits than its factorization.

10020000001020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167000000029 (or 167000000027 counting only the distinct ones).

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

Adding to 10020000001020 its reverse (2010000002001), we get a palindrome (12030000003021).

The spelling of 10020000001020 in words is "ten trillion, twenty billion, one thousand, twenty".