12121010102003 has 4 divisors (see below), whose sum is σ = 13222920111288. Its totient is φ = 11019100092720.

The previous prime is 12121010101997. The next prime is 12121010102009. The reversal of 12121010102003 is 30020101012121.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (12121010101997) and next prime (12121010102009).

It is a cyclic number.

It is not a de Polignac number, because 12121010102003 - 2²⁰ = 12121009053427 is a prime.

It is a super-2 number, since 2×12121010102003² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12121010102009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550955004626 + ... + 550955004647.

It is an arithmetic number, because the mean of its divisors is an integer number (3305730027822).

Almost surely, 2^{12121010102003} is an apocalyptic number.

12121010102003 is a deficient number, since it is larger than the sum of its proper divisors (1101910009285).

12121010102003 is a wasteful number, since it uses less digits than its factorization.

12121010102003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101910009284.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 12121010102003 its reverse (30020101012121), we get a palindrome (42141111114124).

The spelling of 12121010102003 in words is "twelve trillion, one hundred twenty-one billion, ten million, one hundred two thousand, three".