11030121021 has 8 divisors (see below), whose sum is σ = 14710101984. Its totient is φ = 7351777040.

The previous prime is 11030121013. The next prime is 11030121059. The reversal of 11030121021 is 12012103011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11030121021 - 2³ = 11030121013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11030120988 and 11030121006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11030121061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 393435 + ... + 420536.

It is an arithmetic number, because the mean of its divisors is an integer number (1838762748).

Almost surely, 2^11030121021 is an apocalyptic number.

It is an amenable number.

11030121021 is a deficient number, since it is larger than the sum of its proper divisors (3679980963).

11030121021 is an equidigital number, since it uses as much as digits as its factorization.

11030121021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818491.

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

Adding to 11030121021 its reverse (12012103011), we get a palindrome (23042224032).

The spelling of 11030121021 in words is "eleven billion, thirty million, one hundred twenty-one thousand, twenty-one".