1123112312 has 32 divisors (see below), whose sum is σ = 2409678720. Its totient is φ = 480732000.

The previous prime is 1123112281. The next prime is 1123112323. The reversal of 1123112312 is 2132113211.

It is a super-2 number, since 2×1123112312² = 2522762530731970688, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34187 + ... + 58437.

It is an arithmetic number, because the mean of its divisors is an integer number (75302460).

Almost surely, 2^1123112312 is an apocalyptic number.

It is an amenable number.

1123112312 is an abundant number, since it is smaller than the sum of its proper divisors (1286566408).

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

1123112312 is a wasteful number, since it uses less digits than its factorization.

1123112312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25091 (or 25087 counting only the distinct ones).

The product of its digits is 72, while the sum is 17.

The square root of 1123112312 is about 33512.8678569889. The cubic root of 1123112312 is about 1039.4598748594.

Adding to 1123112312 its reverse (2132113211), we get a palindrome (3255225523).

The spelling of 1123112312 in words is "one billion, one hundred twenty-three million, one hundred twelve thousand, three hundred twelve".