1123144212 has 24 divisors (see below), whose sum is σ = 2623662496. Its totient is φ = 373953888.

The previous prime is 1123144189. The next prime is 1123144223. The reversal of 1123144212 is 2124413211.

It is a super-2 number, since 2×1123144212² = 2522905841898201888, which contains 22 as substring.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42403 + ... + 63594.

Almost surely, 2^1123144212 is an apocalyptic number.

1123144212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1123144212 is an abundant number, since it is smaller than the sum of its proper divisors (1500518284).

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

1123144212 is a wasteful number, since it uses less digits than its factorization.

1123144212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106887 (or 106885 counting only the distinct ones).

The product of its digits is 384, while the sum is 21.

The square root of 1123144212 is about 33513.3437901980. The cubic root of 1123144212 is about 1039.4697161002.

Adding to 1123144212 its reverse (2124413211), we get a palindrome (3247557423).

The spelling of 1123144212 in words is "one billion, one hundred twenty-three million, one hundred forty-four thousand, two hundred twelve".