12120411403 has 4 divisors (see below), whose sum is σ = 12511392448. Its totient is φ = 11729430360.

The previous prime is 12120411377. The next prime is 12120411427. The reversal of 12120411403 is 30411402121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30411402121 = 8429 ⋅3607949.

It is a cyclic number.

It is not a de Polignac number, because 12120411403 - 2⁹ = 12120410891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12120411463) 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, 195490476 + ... + 195490537.

It is an arithmetic number, because the mean of its divisors is an integer number (3127848112).

Almost surely, 2^12120411403 is an apocalyptic number.

12120411403 is a deficient number, since it is larger than the sum of its proper divisors (390981045).

12120411403 is an equidigital number, since it uses as much as digits as its factorization.

12120411403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390981044.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 12120411403 its reverse (30411402121), we get a palindrome (42531813524).

The spelling of 12120411403 in words is "twelve billion, one hundred twenty million, four hundred eleven thousand, four hundred three".