1123103100012 has 48 divisors (see below), whose sum is σ = 2816139150720. Its totient is φ = 347087169792.

The previous prime is 1123103099983. The next prime is 1123103100073. The reversal of 1123103100012 is 2100013013211.

It is a happy number.

It is a super-2 number, since 2×1123103100012² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1123103099964 and 1123103100000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41071462 + ... + 41098797.

It is an arithmetic number, because the mean of its divisors is an integer number (58669565640).

Almost surely, 2^{1123103100012} is an apocalyptic number.

1123103100012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1123103100012 is an abundant number, since it is smaller than the sum of its proper divisors (1693036050708).

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

1123103100012 is a wasteful number, since it uses less digits than its factorization.

1123103100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82170350 (or 82170348 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1123103100012 its reverse (2100013013211), we get a palindrome (3223116113223).

The spelling of 1123103100012 in words is "one trillion, one hundred twenty-three billion, one hundred three million, one hundred thousand, twelve".