11320122312 has 48 divisors (see below), whose sum is σ = 30703168080. Its totient is φ = 3767896800.

The previous prime is 11320122293. The next prime is 11320122329. The reversal of 11320122312 is 21322102311.

11320122312 is a `hidden beast` number, since 11 + 320 + 1 + 22 + 312 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64014 + ... + 163517.

It is an arithmetic number, because the mean of its divisors is an integer number (639649335).

Almost surely, 2^11320122312 is an apocalyptic number.

11320122312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11320122312 is an abundant number, since it is smaller than the sum of its proper divisors (19383045768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11320122312 is a wasteful number, since it uses less digits than its factorization.

11320122312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228234 (or 228227 counting only the distinct ones).

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

Adding to 11320122312 its reverse (21322102311), we get a palindrome (32642224623).

The spelling of 11320122312 in words is "eleven billion, three hundred twenty million, one hundred twenty-two thousand, three hundred twelve".