1323012612105 has 32 divisors (see below), whose sum is σ = 2359128309120. Its totient is φ = 703474960320.

The previous prime is 1323012612091. The next prime is 1323012612157. The reversal of 1323012612105 is 5012162103231.

1323012612105 is a `hidden beast` number, since 1 + 3 + 2 + 30 + 1 + 2 + 612 + 10 + 5 = 666.

It is not a de Polignac number, because 1323012612105 - 2¹² = 1323012608009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14759082 + ... + 14848451.

It is an arithmetic number, because the mean of its divisors is an integer number (73722759660).

Almost surely, 2^{1323012612105} is an apocalyptic number.

1323012612105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1323012612105 is a deficient number, since it is larger than the sum of its proper divisors (1036115697015).

1323012612105 is a wasteful number, since it uses less digits than its factorization.

1323012612105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29607878 (or 29607872 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

Adding to 1323012612105 its reverse (5012162103231), we get a palindrome (6335174715336).

The spelling of 1323012612105 in words is "one trillion, three hundred twenty-three billion, twelve million, six hundred twelve thousand, one hundred five".