1123110012 has 24 divisors (see below), whose sum is σ = 2659705216. Its totient is φ = 368782128.

The previous prime is 1123110011. The next prime is 1123110013. The reversal of 1123110012 is 2100113211.

It is an interprime number because it is at equal distance from previous prime (1123110011) and next prime (1123110013).

It is a super-2 number, since 2×1123110012² = 2522752198109280288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1123110012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123110011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 697648 + ... + 699255.

Almost surely, 2^1123110012 is an apocalyptic number.

1123110012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1123110012 is an abundant number, since it is smaller than the sum of its proper divisors (1536595204).

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

1123110012 is a wasteful number, since it uses less digits than its factorization.

1123110012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1396977 (or 1396975 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 1123110012 is about 33512.8335417941. The cubic root of 1123110012 is about 1039.4591652957.

Adding to 1123110012 its reverse (2100113211), we get a palindrome (3223223223).

The spelling of 1123110012 in words is "one billion, one hundred twenty-three million, one hundred ten thousand, twelve".