1103321223312 has 80 divisors (see below), whose sum is σ = 3553554081792. Its totient is φ = 286576940160.

The previous prime is 1103321223281. The next prime is 1103321223331. The reversal of 1103321223312 is 2133221233011.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149255128 + ... + 149262519.

Almost surely, 2^{1103321223312} is an apocalyptic number.

1103321223312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1103321223312 is an abundant number, since it is smaller than the sum of its proper divisors (2450232858480).

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

1103321223312 is a wasteful number, since it uses less digits than its factorization.

1103321223312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298517676 (or 298517670 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 1103321223312 its reverse (2133221233011), we get a palindrome (3236542456323).

The spelling of 1103321223312 in words is "one trillion, one hundred three billion, three hundred twenty-one million, two hundred twenty-three thousand, three hundred twelve".