11321312002021 has 8 divisors (see below), whose sum is σ = 12940437633920. Its totient is φ = 9702635206608.

The previous prime is 11321312002009. The next prime is 11321312002031. The reversal of 11321312002021 is 12020021312311.

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 11321312002021 - 2¹⁷ = 11321311870949 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11321312002021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11321312002031) 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, 112155066 + ... + 112255963.

It is an arithmetic number, because the mean of its divisors is an integer number (1617554704240).

Almost surely, 2^{11321312002021} is an apocalyptic number.

It is an amenable number.

11321312002021 is a deficient number, since it is larger than the sum of its proper divisors (1619125631899).

11321312002021 is an equidigital number, since it uses as much as digits as its factorization.

11321312002021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224418243.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 11321312002021 its reverse (12020021312311), we get a palindrome (23341333314332).

The spelling of 11321312002021 in words is "eleven trillion, three hundred twenty-one billion, three hundred twelve million, two thousand, twenty-one".