11002021331 has 8 divisors (see below), whose sum is σ = 12576067584. Its totient is φ = 9428557320.

The previous prime is 11002021301. The next prime is 11002021357. The reversal of 11002021331 is 13312020011.

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

It is a de Polignac number, because none of the positive numbers 2^k-11002021331 is a prime.

It is a super-2 number, since 2×11002021331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11002021301) 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, 104285 + ... + 181326.

It is an arithmetic number, because the mean of its divisors is an integer number (1572008448).

Almost surely, 2^11002021331 is an apocalyptic number.

11002021331 is a deficient number, since it is larger than the sum of its proper divisors (1574046253).

11002021331 is an equidigital number, since it uses as much as digits as its factorization.

11002021331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291121.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 11002021331 its reverse (13312020011), we get a palindrome (24314041342).

The spelling of 11002021331 in words is "eleven billion, two million, twenty-one thousand, three hundred thirty-one".