1245324320345 has 128 divisors (see below), whose sum is σ = 1879853432832. Its totient is φ = 772623360000.

The previous prime is 1245324320323. The next prime is 1245324320369. The reversal of 1245324320345 is 5430234235421.

It is not a de Polignac number, because 1245324320345 - 2⁶ = 1245324320281 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1245324320299 and 1245324320308.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 553230470 + ... + 553232720.

It is an arithmetic number, because the mean of its divisors is an integer number (14686354944).

Almost surely, 2^{1245324320345} is an apocalyptic number.

It is an amenable number.

1245324320345 is a deficient number, since it is larger than the sum of its proper divisors (634529112487).

1245324320345 is a wasteful number, since it uses less digits than its factorization.

1245324320345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2671.

The product of its (nonzero) digits is 345600, while the sum is 38.

Adding to 1245324320345 its reverse (5430234235421), we get a palindrome (6675558555766).

The spelling of 1245324320345 in words is "one trillion, two hundred forty-five billion, three hundred twenty-four million, three hundred twenty thousand, three hundred forty-five".