12465213111 has 24 divisors (see below), whose sum is σ = 19841277456. Its totient is φ = 7492504320.

The previous prime is 12465213083. The next prime is 12465213121. The reversal of 12465213111 is 11131256421.

12465213111 is a `hidden beast` number, since 1 + 2 + 4 + 652 + 1 + 3 + 1 + 1 + 1 = 666.

It is not a de Polignac number, because 12465213111 - 2¹⁰ = 12465212087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12465213121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1233810 + ... + 1243871.

It is an arithmetic number, because the mean of its divisors is an integer number (826719894).

Almost surely, 2^12465213111 is an apocalyptic number.

12465213111 is a deficient number, since it is larger than the sum of its proper divisors (7376064345).

12465213111 is a wasteful number, since it uses less digits than its factorization.

12465213111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2477743 (or 2477740 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

Adding to 12465213111 its reverse (11131256421), we get a palindrome (23596469532).

The spelling of 12465213111 in words is "twelve billion, four hundred sixty-five million, two hundred thirteen thousand, one hundred eleven".