12120212110103 has 4 divisors (see below), whose sum is σ = 12273632516640. Its totient is φ = 11966791703568.

The previous prime is 12120212110081. The next prime is 12120212110121. The reversal of 12120212110103 is 30101121202121.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12120212110103 - 2²⁴ = 12120195332887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120212310103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76710203150 + ... + 76710203307.

It is an arithmetic number, because the mean of its divisors is an integer number (3068408129160).

Almost surely, 2^{12120212110103} is an apocalyptic number.

12120212110103 is a deficient number, since it is larger than the sum of its proper divisors (153420406537).

12120212110103 is an equidigital number, since it uses as much as digits as its factorization.

12120212110103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153420406536.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 12120212110103 its reverse (30101121202121), we get a palindrome (42221333312224).

The spelling of 12120212110103 in words is "twelve trillion, one hundred twenty billion, two hundred twelve million, one hundred ten thousand, one hundred three".