11010311021 has 8 divisors (see below), whose sum is σ = 11115442080. Its totient is φ = 10905221488.

The previous prime is 11010311009. The next prime is 11010311023. The reversal of 11010311021 is 12011301011.

It is a happy number.

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 11010311021 - 2¹⁰ = 11010309997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11010310993 and 11010311011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11010311023) 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, 891275 + ... + 903543.

It is an arithmetic number, because the mean of its divisors is an integer number (1389430260).

Almost surely, 2^11010311021 is an apocalyptic number.

It is an amenable number.

11010311021 is a deficient number, since it is larger than the sum of its proper divisors (105131059).

11010311021 is a wasteful number, since it uses less digits than its factorization.

11010311021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20763.

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

Adding to 11010311021 its reverse (12011301011), we get a palindrome (23021612032).

The spelling of 11010311021 in words is "eleven billion, ten million, three hundred eleven thousand, twenty-one".