1323122100020 has 96 divisors (see below), whose sum is σ = 3182488807680. Its totient is φ = 452643655680.

The previous prime is 1323122099947. The next prime is 1323122100059. The reversal of 1323122100020 is 200012213231.

It is a super-2 number, since 2×1323122100020² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 126283022 + ... + 126293498.

It is an arithmetic number, because the mean of its divisors is an integer number (33150925080).

Almost surely, 2^{1323122100020} is an apocalyptic number.

1323122100020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323122100020 is an abundant number, since it is smaller than the sum of its proper divisors (1859366707660).

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

1323122100020 is a wasteful number, since it uses less digits than its factorization.

1323122100020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12393 (or 12391 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1323122100020 its reverse (200012213231), we get a palindrome (1523134313251).

The spelling of 1323122100020 in words is "one trillion, three hundred twenty-three billion, one hundred twenty-two million, one hundred thousand, twenty".