12120302311103 has 8 divisors (see below), whose sum is σ = 13851804331008. Its totient is φ = 10388807856504.

The previous prime is 12120302311097. The next prime is 12120302311111. The reversal of 12120302311103 is 30111320302121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12120302311103 - 2²⁸ = 12120033875647 is a prime.

It is a super-2 number, since 2×12120302311103² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120302311153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2104550 + ... + 5354412.

It is an arithmetic number, because the mean of its divisors is an integer number (1731475541376).

Almost surely, 2^{12120302311103} is an apocalyptic number.

12120302311103 is a deficient number, since it is larger than the sum of its proper divisors (1731502019905).

12120302311103 is an equidigital number, since it uses as much as digits as its factorization.

12120302311103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3782653.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 12120302311103 its reverse (30111320302121), we get a palindrome (42231622613224).

The spelling of 12120302311103 in words is "twelve trillion, one hundred twenty billion, three hundred two million, three hundred eleven thousand, one hundred three".