1103323320020 has 48 divisors (see below), whose sum is σ = 2346763624128. Its totient is φ = 435690977280.

The previous prime is 1103323319977. The next prime is 1103323320031. The reversal of 1103323320020 is 200233233011.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1103323319974 and 1103323320001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 585314 + ... + 1596633.

It is an arithmetic number, because the mean of its divisors is an integer number (48890908836).

Almost surely, 2^{1103323320020} is an apocalyptic number.

1103323320020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1103323320020 is an abundant number, since it is smaller than the sum of its proper divisors (1243440304108).

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

1103323320020 is a wasteful number, since it uses less digits than its factorization.

1103323320020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2182280 (or 2182278 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 1103323320020 its reverse (200233233011), we get a palindrome (1303556553031).

The spelling of 1103323320020 in words is "one trillion, one hundred three billion, three hundred twenty-three million, three hundred twenty thousand, twenty".