1122312312 has 96 divisors (see below), whose sum is σ = 3378613680. Its totient is φ = 333665280.

The previous prime is 1122312299. The next prime is 1122312361. The reversal of 1122312312 is 2132132211.

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

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28608 + ... + 55344.

Almost surely, 2^1122312312 is an apocalyptic number.

1122312312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1122312312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1689306840).

1122312312 is an abundant number, since it is smaller than the sum of its proper divisors (2256301368).

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

1122312312 is a wasteful number, since it uses less digits than its factorization.

1122312312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26813 (or 26806 counting only the distinct ones).

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

The square root of 1122312312 is about 33500.9300169413. The cubic root of 1122312312 is about 1039.2130116227.

Adding to 1122312312 its reverse (2132132211), we get a palindrome (3254444523).

The spelling of 1122312312 in words is "one billion, one hundred twenty-two million, three hundred twelve thousand, three hundred twelve".