12121002023103 has 24 divisors (see below), whose sum is σ = 18269497735008. Its totient is φ = 7729266359232.

The previous prime is 12121002023069. The next prime is 12121002023129. The reversal of 12121002023103 is 30132020012121.

12121002023103 is a `hidden beast` number, since 121 + 210 + 0 + 20 + 2 + 310 + 3 = 666.

It is not a de Polignac number, because 12121002023103 - 2¹⁰ = 12121002022079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121002023903) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34484601 + ... + 34834317.

It is an arithmetic number, because the mean of its divisors is an integer number (761229072292).

Almost surely, 2^{12121002023103} is an apocalyptic number.

12121002023103 is a deficient number, since it is larger than the sum of its proper divisors (6148495711905).

12121002023103 is a wasteful number, since it uses less digits than its factorization.

12121002023103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517183 (or 517180 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12121002023103 its reverse (30132020012121), we get a palindrome (42253022035224).

The spelling of 12121002023103 in words is "twelve trillion, one hundred twenty-one billion, two million, twenty-three thousand, one hundred three".