12103213145 has 8 divisors (see below), whose sum is σ = 14537949120. Its totient is φ = 9673174960.

The previous prime is 12103213141. The next prime is 12103213147. The reversal of 12103213145 is 54131230121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12103213145 - 2² = 12103213141 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12103213145.

It is not an unprimeable number, because it can be changed into a prime (12103213141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1168775 + ... + 1179084.

It is an arithmetic number, because the mean of its divisors is an integer number (1817243640).

Almost surely, 2^12103213145 is an apocalyptic number.

It is an amenable number.

12103213145 is a deficient number, since it is larger than the sum of its proper divisors (2434735975).

12103213145 is a wasteful number, since it uses less digits than its factorization.

12103213145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2348895.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 12103213145 its reverse (54131230121), we get a palindrome (66234443266).

The spelling of 12103213145 in words is "twelve billion, one hundred three million, two hundred thirteen thousand, one hundred forty-five".