11030101021 has 4 divisors (see below), whose sum is σ = 11139310044. Its totient is φ = 10920892000.

The previous prime is 11030101009. The next prime is 11030101031. The reversal of 11030101021 is 12010103011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12010103011 = 101 ⋅118911911.

It can be written as a sum of positive squares in 2 ways, for example, as 6900624900 + 4129476121 = 83070^2 + 64261^2 .

It is a cyclic number.

It is not a de Polignac number, because 11030101021 - 2²⁷ = 10895883293 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11030100989 and 11030101007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11030101001) 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, 54604360 + ... + 54604561.

It is an arithmetic number, because the mean of its divisors is an integer number (2784827511).

Almost surely, 2^11030101021 is an apocalyptic number.

It is an amenable number.

11030101021 is a deficient number, since it is larger than the sum of its proper divisors (109209023).

11030101021 is a wasteful number, since it uses less digits than its factorization.

11030101021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109209022.

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 11030101021 its reverse (12010103011), we get a palindrome (23040204032).

The spelling of 11030101021 in words is "eleven billion, thirty million, one hundred one thousand, twenty-one".