1011020200100 has 18 divisors (see below), whose sum is σ = 2193913834434. Its totient is φ = 404408080000.

The previous prime is 1011020200097. The next prime is 1011020200123. The reversal of 1011020200100 is 10020201101.

It can be written as a sum of positive squares in 3 ways, for example, as 113438281636 + 897581918464 = 336806^2 + 947408^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5055100901 + ... + 5055101100.

It is an arithmetic number, because the mean of its divisors is an integer number (121884101913).

Almost surely, 2^{1011020200100} is an apocalyptic number.

1011020200100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011020200100 is an abundant number, since it is smaller than the sum of its proper divisors (1182893634334).

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

1011020200100 is a wasteful number, since it uses less digits than its factorization.

1011020200100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10110202015 (or 10110202008 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 1011020200100 its reverse (10020201101), we get a palindrome (1021040401201).

The spelling of 1011020200100 in words is "one trillion, eleven billion, twenty million, two hundred thousand, one hundred".