1234522312345 has 32 divisors (see below), whose sum is σ = 1736563219200. Its totient is φ = 842143196160.

The previous prime is 1234522312267. The next prime is 1234522312379. The reversal of 1234522312345 is 5432132254321.

It is not a de Polignac number, because 1234522312345 - 2¹³ = 1234522304153 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1533871 + ... + 2195860.

It is an arithmetic number, because the mean of its divisors is an integer number (54267600600).

Almost surely, 2^{1234522312345} is an apocalyptic number.

It is an amenable number.

1234522312345 is a deficient number, since it is larger than the sum of its proper divisors (502040906855).

1234522312345 is an equidigital number, since it uses as much as digits as its factorization.

1234522312345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3729950 (or 3729936 counting only the distinct ones).

The product of its digits is 172800, while the sum is 37.

Adding to 1234522312345 its reverse (5432132254321), we get a palindrome (6666654566666).

The spelling of 1234522312345 in words is "one trillion, two hundred thirty-four billion, five hundred twenty-two million, three hundred twelve thousand, three hundred forty-five".