1101100130021 has 4 divisors (see below), whose sum is σ = 1102786348332. Its totient is φ = 1099413911712.

The previous prime is 1101100129973. The next prime is 1101100130131. The reversal of 1101100130021 is 1200310011011.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 797404350625 + 303695779396 = 892975^2 + 551086^2 .

It is a cyclic number.

It is not a de Polignac number, because 1101100130021 - 2¹⁴ = 1101100113637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1101100129984 and 1101100130011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101100130821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 843108176 + ... + 843109481.

It is an arithmetic number, because the mean of its divisors is an integer number (275696587083).

Almost surely, 2^{1101100130021} is an apocalyptic number.

It is an amenable number.

1101100130021 is a deficient number, since it is larger than the sum of its proper divisors (1686218311).

1101100130021 is an equidigital number, since it uses as much as digits as its factorization.

1101100130021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1686218310.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 1101100130021 its reverse (1200310011011), we get a palindrome (2301410141032).

The spelling of 1101100130021 in words is "one trillion, one hundred one billion, one hundred million, one hundred thirty thousand, twenty-one".