120012012121103 has 16 divisors (see below), whose sum is σ = 125770126218240. Its totient is φ = 114372861451200.

The previous prime is 120012012121093. The next prime is 120012012121121. The reversal of 120012012121103 is 301121210210021.

It is a happy number.

It is not a de Polignac number, because 120012012121103 - 2⁴ = 120012012121087 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 (120012012121163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1754798 + ... + 15591771.

It is an arithmetic number, because the mean of its divisors is an integer number (7860632888640).

Almost surely, 2^{120012012121103} is an apocalyptic number.

120012012121103 is a deficient number, since it is larger than the sum of its proper divisors (5758114097137).

120012012121103 is a wasteful number, since it uses less digits than its factorization.

120012012121103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17349998.

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

Adding to 120012012121103 its reverse (301121210210021), we get a palindrome (421133222331124).

The spelling of 120012012121103 in words is "one hundred twenty trillion, twelve billion, twelve million, one hundred twenty-one thousand, one hundred three".