1011020330100 has 144 divisors (see below), whose sum is σ = 3265361003520. Its totient is φ = 239395900800.

The previous prime is 1011020330077. The next prime is 1011020330113. The reversal of 1011020330100 is 10330201101.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3420540 + ... + 3704339.

It is an arithmetic number, because the mean of its divisors is an integer number (22676118080).

Almost surely, 2^{1011020330100} is an apocalyptic number.

1011020330100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011020330100 is an abundant number, since it is smaller than the sum of its proper divisors (2254340673420).

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

1011020330100 is a wasteful number, since it uses less digits than its factorization.

1011020330100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7124950 (or 7124943 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 1011020330100 its reverse (10330201101), we get a palindrome (1021350531201).

It can be divided in two parts, 101 and 1020330100, that added together give a palindrome (1020330201).

The spelling of 1011020330100 in words is "one trillion, eleven billion, twenty million, three hundred thirty thousand, one hundred".