12100320331 has 4 divisors (see below), whose sum is σ = 13200349464. Its totient is φ = 11000291200.

The previous prime is 12100320313. The next prime is 12100320347. The reversal of 12100320331 is 13302300121.

12100320331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12100320331 - 2¹⁷ = 12100189259 is a prime.

It is a super-2 number, since 2×12100320331² (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 (12100320311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550014550 + ... + 550014571.

It is an arithmetic number, because the mean of its divisors is an integer number (3300087366).

Almost surely, 2^12100320331 is an apocalyptic number.

12100320331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12100320331 is a deficient number, since it is larger than the sum of its proper divisors (1100029133).

12100320331 is a wasteful number, since it uses less digits than its factorization.

12100320331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100029132.

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

Adding to 12100320331 its reverse (13302300121), we get a palindrome (25402620452).

The spelling of 12100320331 in words is "twelve billion, one hundred million, three hundred twenty thousand, three hundred thirty-one".