12103251512 has 32 divisors (see below), whose sum is σ = 24961273200. Its totient is φ = 5501473120.

The previous prime is 12103251509. The next prime is 12103251553. The reversal of 12103251512 is 21515230121.

12103251512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12103251512² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 557687 + ... + 578982.

Almost surely, 2^12103251512 is an apocalyptic number.

It is an amenable number.

12103251512 is an abundant number, since it is smaller than the sum of its proper divisors (12858021688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12103251512 is a wasteful number, since it uses less digits than its factorization.

12103251512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136708 (or 1136682 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 23.

Adding to 12103251512 its reverse (21515230121), we get a palindrome (33618481633).

The spelling of 12103251512 in words is "twelve billion, one hundred three million, two hundred fifty-one thousand, five hundred twelve".