1213523322344 has 32 divisors (see below), whose sum is σ = 2360924624640. Its totient is φ = 584146252800.

The previous prime is 1213523322343. The next prime is 1213523322353. The reversal of 1213523322344 is 4432233253121.

It is not an unprimeable number, because it can be changed into a prime (1213523322343) 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, 12628922 + ... + 12724649.

It is an arithmetic number, because the mean of its divisors is an integer number (73778894520).

Almost surely, 2^{1213523322344} is an apocalyptic number.

It is an amenable number.

1213523322344 is a deficient number, since it is larger than the sum of its proper divisors (1147401302296).

1213523322344 is a wasteful number, since it uses less digits than its factorization.

1213523322344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25353801 (or 25353797 counting only the distinct ones).

The product of its digits is 103680, while the sum is 35.

Adding to 1213523322344 its reverse (4432233253121), we get a palindrome (5645756575465).

The spelling of 1213523322344 in words is "one trillion, two hundred thirteen billion, five hundred twenty-three million, three hundred twenty-two thousand, three hundred forty-four".