1123210040 has 32 divisors (see below), whose sum is σ = 2528379360. Its totient is φ = 449078400.

The previous prime is 1123210003. The next prime is 1123210057. The reversal of 1123210040 is 400123211.

It is a junction number, because it is equal to n+sod(n) for n = 1123209997 and 1123210024.

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, 106610 + ... + 116670.

It is an arithmetic number, because the mean of its divisors is an integer number (79011855).

Almost surely, 2^1123210040 is an apocalyptic number.

1123210040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123210040 is an abundant number, since it is smaller than the sum of its proper divisors (1405169320).

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

1123210040 is a wasteful number, since it uses less digits than its factorization.

1123210040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12863 (or 12859 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1123210040 is about 33514.3258920719. The cubic root of 1123210040 is about 1039.4900236365.

Adding to 1123210040 its reverse (400123211), we get a palindrome (1523333251).

The spelling of 1123210040 in words is "one billion, one hundred twenty-three million, two hundred ten thousand, forty".