12311222322312 has 48 divisors (see below), whose sum is σ = 33345483229500. Its totient is φ = 4103422073856.

The previous prime is 12311222322253. The next prime is 12311222322403. The reversal of 12311222322312 is 21322322211321.

12311222322312 is a `hidden beast` number, since 1 + 2 + 3 + 1 + 1 + 2 + 22 + 322 + 312 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 10439322228036 + 1871900094276 = 3230994^2 + 1368174^2 .

It is a nude number because it is divisible by every one of its digits.

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, 5705137 + ... + 7561152.

Almost surely, 2^{12311222322312} is an apocalyptic number.

12311222322312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12311222322312 is an abundant number, since it is smaller than the sum of its proper divisors (21034260907188).

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

12311222322312 is a wasteful number, since it uses less digits than its factorization.

12311222322312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13279190 (or 13279183 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

Adding to 12311222322312 its reverse (21322322211321), we get a palindrome (33633544533633).

The spelling of 12311222322312 in words is "twelve trillion, three hundred eleven billion, two hundred twenty-two million, three hundred twenty-two thousand, three hundred twelve".