12240103205 has 16 divisors (see below), whose sum is σ = 16068067200. Its totient is φ = 8877082560.

The previous prime is 12240103199. The next prime is 12240103217. The reversal of 12240103205 is 50230104221.

It is not a de Polignac number, because 12240103205 - 2⁸ = 12240102949 is a prime.

It is a congruent number.

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, 290210 + ... + 329699.

It is an arithmetic number, because the mean of its divisors is an integer number (1004254200).

Almost surely, 2^12240103205 is an apocalyptic number.

It is an amenable number.

12240103205 is a deficient number, since it is larger than the sum of its proper divisors (3827963995).

12240103205 is a wasteful number, since it uses less digits than its factorization.

12240103205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620284.

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 12240103205 its sum of digits (20), we get a square (12240103225 = 110635²).

Adding to 12240103205 its reverse (50230104221), we get a palindrome (62470207426).

The spelling of 12240103205 in words is "twelve billion, two hundred forty million, one hundred three thousand, two hundred five".