11021331101 has 6 divisors (see below), whose sum is σ = 12114355806. Its totient is φ = 10019391800.

The previous prime is 11021331089. The next prime is 11021331133. The reversal of 11021331101 is 10113312011.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 8928360100 + 2092971001 = 94490^2 + 45749^2 .

It is not a de Polignac number, because 11021331101 - 2⁶ = 11021331037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021331151) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45542570 + ... + 45542811.

It is an arithmetic number, because the mean of its divisors is an integer number (2019059301).

Almost surely, 2^11021331101 is an apocalyptic number.

11021331101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11021331101 is a deficient number, since it is larger than the sum of its proper divisors (1093024705).

11021331101 is an equidigital number, since it uses as much as digits as its factorization.

11021331101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91085403 (or 91085392 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 11021331101 its reverse (10113312011), we get a palindrome (21134643112).

The spelling of 11021331101 in words is "eleven billion, twenty-one million, three hundred thirty-one thousand, one hundred one".