11320213331 has 4 divisors (see below), whose sum is σ = 12937386672. Its totient is φ = 9703039992.

The previous prime is 11320213279. The next prime is 11320213339. The reversal of 11320213331 is 13331202311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13331202311 = 7 ⋅1904457473.

It is a cyclic number.

It is not a de Polignac number, because 11320213331 - 2²² = 11316019027 is a prime.

It is a super-2 number, since 2×11320213331² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11320213339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 808586660 + ... + 808586673.

It is an arithmetic number, because the mean of its divisors is an integer number (3234346668).

Almost surely, 2^11320213331 is an apocalyptic number.

11320213331 is a deficient number, since it is larger than the sum of its proper divisors (1617173341).

11320213331 is an equidigital number, since it uses as much as digits as its factorization.

11320213331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1617173340.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 11320213331 its reverse (13331202311), we get a palindrome (24651415642).

The spelling of 11320213331 in words is "eleven billion, three hundred twenty million, two hundred thirteen thousand, three hundred thirty-one".