12120310016 has 36 divisors (see below), whose sum is σ = 24201845052. Its totient is φ = 6058008576.

The previous prime is 12120310009. The next prime is 12120310031. The reversal of 12120310016 is 61001302121.

It can be written as a sum of positive squares in 2 ways, for example, as 5822300416 + 6298009600 = 76304^2 + 79360^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12120309976 and 12120310003.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 913220 + ... + 926396.

Almost surely, 2^12120310016 is an apocalyptic number.

12120310016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12120310016 is a deficient number, since it is larger than the sum of its proper divisors (12081535036).

12120310016 is an equidigital number, since it uses as much as digits as its factorization.

12120310016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16786 (or 16772 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12120310016 its reverse (61001302121), we get a palindrome (73121612137).

The spelling of 12120310016 in words is "twelve billion, one hundred twenty million, three hundred ten thousand, sixteen".