1100321020123 has 24 divisors (see below), whose sum is σ = 1199728558080. Its totient is φ = 1008646610400.

The previous prime is 1100321019971. The next prime is 1100321020129. The reversal of 1100321020123 is 3210201230011.

It is not a de Polignac number, because 1100321020123 - 2¹⁷ = 1100320889051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1100321020097 and 1100321020106.

It is not an unprimeable number, because it can be changed into a prime (1100321020129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 156759708 + ... + 156766726.

It is an arithmetic number, because the mean of its divisors is an integer number (49988689920).

Almost surely, 2^{1100321020123} is an apocalyptic number.

1100321020123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1100321020123 is a deficient number, since it is larger than the sum of its proper divisors (99407537957).

1100321020123 is a wasteful number, since it uses less digits than its factorization.

1100321020123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13339 (or 13326 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1100321020123 its reverse (3210201230011), we get a palindrome (4310522250134).

The spelling of 1100321020123 in words is "one trillion, one hundred billion, three hundred twenty-one million, twenty thousand, one hundred twenty-three".