12120031201 has 4 divisors (see below), whose sum is σ = 12757927600. Its totient is φ = 11482134804.

The previous prime is 12120031199. The next prime is 12120031237. The reversal of 12120031201 is 10213002121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12120031201 - 2¹ = 12120031199 is a prime.

It is a super-3 number, since 3×12120031201³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12120031801) 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, 318948171 + ... + 318948208.

It is an arithmetic number, because the mean of its divisors is an integer number (3189481900).

Almost surely, 2^12120031201 is an apocalyptic number.

It is an amenable number.

12120031201 is a deficient number, since it is larger than the sum of its proper divisors (637896399).

12120031201 is an equidigital number, since it uses as much as digits as its factorization.

12120031201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637896398.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 12120031201 its reverse (10213002121), we get a palindrome (22333033322).

The spelling of 12120031201 in words is "twelve billion, one hundred twenty million, thirty-one thousand, two hundred one".