1322440143453 has 48 divisors (see below), whose sum is σ = 2321525082240. Its totient is φ = 714315369600.

The previous prime is 1322440143449. The next prime is 1322440143473. The reversal of 1322440143453 is 3543410442231.

1322440143453 is a `hidden beast` number, since 1 + 3 + 2 + 24 + 40 + 143 + 453 = 666.

It is not a de Polignac number, because 1322440143453 - 2² = 1322440143449 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322440143473) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 17678833 + ... + 17753478.

It is an arithmetic number, because the mean of its divisors is an integer number (48365105880).

Almost surely, 2^{1322440143453} is an apocalyptic number.

1322440143453 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1322440143453 is a deficient number, since it is larger than the sum of its proper divisors (999084938787).

1322440143453 is a wasteful number, since it uses less digits than its factorization.

1322440143453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35432370 (or 35432367 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

Adding to 1322440143453 its reverse (3543410442231), we get a palindrome (4865850585684).

The spelling of 1322440143453 in words is "one trillion, three hundred twenty-two billion, four hundred forty million, one hundred forty-three thousand, four hundred fifty-three".