1123003012 has 24 divisors (see below), whose sum is σ = 1997372160. Its totient is φ = 552377280.

The previous prime is 1123003003. The next prime is 1123003033. The reversal of 1123003012 is 2103003211.

It is a super-2 number, since 2×1123003012² = 2522271529922144288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1123002983 and 1123003001.

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, 82473 + ... + 95119.

It is an arithmetic number, because the mean of its divisors is an integer number (83223840).

Almost surely, 2^1123003012 is an apocalyptic number.

It is an amenable number.

1123003012 is a deficient number, since it is larger than the sum of its proper divisors (874369148).

1123003012 is a wasteful number, since it uses less digits than its factorization.

1123003012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13011 (or 13009 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1123003012 is about 33511.2371004116. The cubic root of 1123003012 is about 1039.4261540852.

Adding to 1123003012 its reverse (2103003211), we get a palindrome (3226006223).

The spelling of 1123003012 in words is "one billion, one hundred twenty-three million, three thousand, twelve".