1102103123121 has 96 divisors (see below), whose sum is σ = 2141620266240. Its totient is φ = 527440550400.

The previous prime is 1102103123117. The next prime is 1102103123137. The reversal of 1102103123121 is 1213213012011.

1102103123121 is a `hidden beast` number, since 110 + 210 + 31 + 2 + 312 + 1 = 666.

It is not a de Polignac number, because 1102103123121 - 2² = 1102103123117 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1102103123094 and 1102103123103.

It is not an unprimeable number, because it can be changed into a prime (1102103124121) 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 95 ways as a sum of consecutive naturals, for example, 4465411 + ... + 4705751.

It is an arithmetic number, because the mean of its divisors is an integer number (22308544440).

Almost surely, 2^{1102103123121} is an apocalyptic number.

1102103123121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1102103123121 is a deficient number, since it is larger than the sum of its proper divisors (1039517143119).

1102103123121 is a wasteful number, since it uses less digits than its factorization.

1102103123121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240887 (or 240884 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1102103123121 its reverse (1213213012011), we get a palindrome (2315316135132).

The spelling of 1102103123121 in words is "one trillion, one hundred two billion, one hundred three million, one hundred twenty-three thousand, one hundred twenty-one".