1323121103020 has 12 divisors (see below), whose sum is σ = 2778554316384. Its totient is φ = 529248441200.

The previous prime is 1323121102997. The next prime is 1323121103099. The reversal of 1323121103020 is 203011213231.

It is a super-2 number, since 2×1323121103020² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33078027556 + ... + 33078027595.

It is an arithmetic number, because the mean of its divisors is an integer number (231546193032).

Almost surely, 2^{1323121103020} is an apocalyptic number.

1323121103020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323121103020 is an abundant number, since it is smaller than the sum of its proper divisors (1455433213364).

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

1323121103020 is a wasteful number, since it uses less digits than its factorization.

1323121103020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66156055160 (or 66156055158 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1323121103020 its reverse (203011213231), we get a palindrome (1526132316251).

The spelling of 1323121103020 in words is "one trillion, three hundred twenty-three billion, one hundred twenty-one million, one hundred three thousand, twenty".