1623403545323 has 16 divisors (see below), whose sum is σ = 1861121201664. Its totient is φ = 1387137502080.

The previous prime is 1623403545319. The next prime is 1623403545353. The reversal of 1623403545323 is 3235453043261.

It is a cyclic number.

It is not a de Polignac number, because 1623403545323 - 2² = 1623403545319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1623403545353) 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 15 ways as a sum of consecutive naturals, for example, 25587386 + ... + 25650752.

It is an arithmetic number, because the mean of its divisors is an integer number (116320075104).

Almost surely, 2^{1623403545323} is an apocalyptic number.

1623403545323 is a deficient number, since it is larger than the sum of its proper divisors (237717656341).

1623403545323 is a wasteful number, since it uses less digits than its factorization.

1623403545323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74762.

The product of its (nonzero) digits is 777600, while the sum is 41.

Adding to 1623403545323 its reverse (3235453043261), we get a palindrome (4858856588584).

The spelling of 1623403545323 in words is "one trillion, six hundred twenty-three billion, four hundred three million, five hundred forty-five thousand, three hundred twenty-three".