1101101020 has 12 divisors (see below), whose sum is σ = 2312312184. Its totient is φ = 440440400.

The previous prime is 1101101017. The next prime is 1101101039. The reversal of 1101101020 is 201011011.

It is a junction number, because it is equal to n+sod(n) for n = 1101100994 and 1101101012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27527506 + ... + 27527545.

It is an arithmetic number, because the mean of its divisors is an integer number (192692682).

Almost surely, 2^1101101020 is an apocalyptic number.

1101101020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1101101020 is an abundant number, since it is smaller than the sum of its proper divisors (1211211164).

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

1101101020 is a wasteful number, since it uses less digits than its factorization.

1101101020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55055060 (or 55055058 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 7.

The square root of 1101101020 is about 33182.8422531886. The cubic root of 1101101020 is about 1032.6244130498.

Adding to 1101101020 its reverse (201011011), we get a palindrome (1302112031).

Subtracting from 1101101020 its reverse (201011011), we obtain a palindrome (900090009).

The spelling of 1101101020 in words is "one billion, one hundred one million, one hundred one thousand, twenty".