12011321210103 has 24 divisors (see below), whose sum is σ = 18109169047008. Its totient is φ = 7657214951232.

The previous prime is 12011321210069. The next prime is 12011321210107. The reversal of 12011321210103 is 30101212311021.

12011321210103 is a `hidden beast` number, since 1 + 20 + 11 + 321 + 210 + 103 = 666.

It is not a de Polignac number, because 12011321210103 - 2¹² = 12011321206007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011321210107) 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, 7521300 + ... + 8977337.

It is an arithmetic number, because the mean of its divisors is an integer number (754548710292).

Almost surely, 2^{12011321210103} is an apocalyptic number.

12011321210103 is a deficient number, since it is larger than the sum of its proper divisors (6097847836905).

12011321210103 is a wasteful number, since it uses less digits than its factorization.

12011321210103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16502183 (or 16502180 counting only the distinct ones).

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

Adding to 12011321210103 its reverse (30101212311021), we get a palindrome (42112533521124).

The spelling of 12011321210103 in words is "twelve trillion, eleven billion, three hundred twenty-one million, two hundred ten thousand, one hundred three".