12320031507 has 16 divisors (see below), whose sum is σ = 18868684032. Its totient is φ = 7004279520.

The previous prime is 12320031473. The next prime is 12320031533. The reversal of 12320031507 is 70513002321.

12320031507 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12320031507 - 2¹² = 12320027411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12320031587) 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 15 ways as a sum of consecutive naturals, for example, 1484869 + ... + 1493142.

It is an arithmetic number, because the mean of its divisors is an integer number (1179292752).

Almost surely, 2^12320031507 is an apocalyptic number.

12320031507 is a deficient number, since it is larger than the sum of its proper divisors (6548652525).

12320031507 is a wasteful number, since it uses less digits than its factorization.

12320031507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2978218.

The product of its (nonzero) digits is 1260, while the sum is 24.

Adding to 12320031507 its reverse (70513002321), we get a palindrome (82833033828).

The spelling of 12320031507 in words is "twelve billion, three hundred twenty million, thirty-one thousand, five hundred seven".