11020312221131 has 8 divisors (see below), whose sum is σ = 11076599946720. Its totient is φ = 10964133476352.

The previous prime is 11020312221049. The next prime is 11020312221143. The reversal of 11020312221131 is 13112221302011.

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 11020312221131 - 2¹⁰ = 11020312220107 is a prime.

It is a super-3 number, since 3×11020312221131³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11020312221181) 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, 27042440 + ... + 27446933.

It is an arithmetic number, because the mean of its divisors is an integer number (1384574993340).

Almost surely, 2^{11020312221131} is an apocalyptic number.

11020312221131 is a deficient number, since it is larger than the sum of its proper divisors (56287725589).

11020312221131 is an equidigital number, since it uses as much as digits as its factorization.

11020312221131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54490405.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 11020312221131 its reverse (13112221302011), we get a palindrome (24132533523142).

The spelling of 11020312221131 in words is "eleven trillion, twenty billion, three hundred twelve million, two hundred twenty-one thousand, one hundred thirty-one".