12120003331 has 4 divisors (see below), whose sum is σ = 12141531432. Its totient is φ = 12098475232.

The previous prime is 12120003299. The next prime is 12120003421. The reversal of 12120003331 is 13330002121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13330002121 = 19 ⋅701579059.

It is a cyclic number.

It is not a de Polignac number, because 12120003331 - 2⁵ = 12120003299 is a prime.

It is a super-2 number, since 2×12120003331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12120007331) 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, 10763206 + ... + 10764331.

It is an arithmetic number, because the mean of its divisors is an integer number (3035382858).

Almost surely, 2^12120003331 is an apocalyptic number.

12120003331 is a deficient number, since it is larger than the sum of its proper divisors (21528101).

12120003331 is an equidigital number, since it uses as much as digits as its factorization.

12120003331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21528100.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 12120003331 its reverse (13330002121), we get a palindrome (25450005452).

The spelling of 12120003331 in words is "twelve billion, one hundred twenty million, three thousand, three hundred thirty-one".