11320122231 has 24 divisors (see below), whose sum is σ = 18887051664. Its totient is φ = 6457109760.

The previous prime is 11320122133. The next prime is 11320122259. The reversal of 11320122231 is 13222102311.

It is not a de Polignac number, because 11320122231 - 2⁹ = 11320121719 is a prime.

It is a super-2 number, since 2×11320122231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11320126231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3361396 + ... + 3364761.

It is an arithmetic number, because the mean of its divisors is an integer number (786960486).

Almost surely, 2^11320122231 is an apocalyptic number.

11320122231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11320122231 is a deficient number, since it is larger than the sum of its proper divisors (7566929433).

11320122231 is a wasteful number, since it uses less digits than its factorization.

11320122231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6726191 (or 6726188 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 11320122231 its reverse (13222102311), we get a palindrome (24542224542).

The spelling of 11320122231 in words is "eleven billion, three hundred twenty million, one hundred twenty-two thousand, two hundred thirty-one".