12310203506 has 32 divisors (see below), whose sum is σ = 20044810800. Its totient is φ = 5647104000.

The previous prime is 12310203469. The next prime is 12310203541. The reversal of 12310203506 is 60530201321.

It can be written as a sum of positive squares in 8 ways, for example, as 5860668025 + 6449535481 = 76555^2 + 80309^2 .

It is a super-2 number, since 2×12310203506² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2156456 + ... + 2162156.

Almost surely, 2^12310203506 is an apocalyptic number.

12310203506 is a deficient number, since it is larger than the sum of its proper divisors (7734607294).

12310203506 is a wasteful number, since it uses less digits than its factorization.

12310203506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7310.

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 12310203506 its reverse (60530201321), we get a palindrome (72840404827).

The spelling of 12310203506 in words is "twelve billion, three hundred ten million, two hundred three thousand, five hundred six".