1103323021212 has 24 divisors (see below), whose sum is σ = 2574448240000. Its totient is φ = 367770360816.

The previous prime is 1103323021211. The next prime is 1103323021303. The reversal of 1103323021212 is 2121203233011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103323021211) 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, 791289 + ... + 1683087.

Almost surely, 2^{1103323021212} is an apocalyptic number.

1103323021212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1103323021212 is an abundant number, since it is smaller than the sum of its proper divisors (1471125218788).

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

1103323021212 is a wasteful number, since it uses less digits than its factorization.

1103323021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994905 (or 994903 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1103323021212 its reverse (2121203233011), we get a palindrome (3224526254223).

The spelling of 1103323021212 in words is "one trillion, one hundred three billion, three hundred twenty-three million, twenty-one thousand, two hundred twelve".