121013102102103 has 18 divisors (see below), whose sum is σ = 178956278471256. Its totient is φ = 78799229264952.

The previous prime is 121013102102093. The next prime is 121013102102129. The reversal of 121013102102103 is 301201201310121.

121013102102103 is a `hidden beast` number, since 1 + 210 + 1 + 31 + 0 + 210 + 210 + 3 = 666.

It is not a de Polignac number, because 121013102102103 - 2¹⁷ = 121013101971031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121013102122103) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3635975851 + ... + 3636009132.

Almost surely, 2^{121013102102103} is an apocalyptic number.

121013102102103 is a deficient number, since it is larger than the sum of its proper divisors (57943176369153).

121013102102103 is an equidigital number, since it uses as much as digits as its factorization.

121013102102103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7271985075 (or 7271985029 counting only the distinct ones).

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

Adding to 121013102102103 its reverse (301201201310121), we get a palindrome (422214303412224).

The spelling of 121013102102103 in words is "one hundred twenty-one trillion, thirteen billion, one hundred two million, one hundred two thousand, one hundred three".