11313221145 has 16 divisors (see below), whose sum is σ = 18109386432. Its totient is φ = 6030973760.

The previous prime is 11313221137. The next prime is 11313221201. The reversal of 11313221145 is 54112231311.

It is not a de Polignac number, because 11313221145 - 2³ = 11313221137 is a prime.

It is a super-2 number, since 2×11313221145² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137211 + ... + 203600.

It is an arithmetic number, because the mean of its divisors is an integer number (1131836652).

Almost surely, 2^11313221145 is an apocalyptic number.

11313221145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11313221145 is a deficient number, since it is larger than the sum of its proper divisors (6796165287).

11313221145 is a wasteful number, since it uses less digits than its factorization.

11313221145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343032.

The product of its digits is 720, while the sum is 24.

Adding to 11313221145 its reverse (54112231311), we get a palindrome (65425452456).

The spelling of 11313221145 in words is "eleven billion, three hundred thirteen million, two hundred twenty-one thousand, one hundred forty-five".