123315300453443 has 32 divisors (see below), whose sum is σ = 145773794181120. Its totient is φ = 102081372180480.

The previous prime is 123315300453419. The next prime is 123315300453479. The reversal of 123315300453443 is 344354003513321.

It is not a de Polignac number, because 123315300453443 - 2⁸ = 123315300453187 is a prime.

It is a super-3 number, since 3×123315300453443³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 123315300453443.

It is not an unprimeable number, because it can be changed into a prime (123315300455443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 231188630 + ... + 231721412.

It is an arithmetic number, because the mean of its divisors is an integer number (4555431068160).

Almost surely, 2^{123315300453443} is an apocalyptic number.

123315300453443 is a deficient number, since it is larger than the sum of its proper divisors (22458493727677).

123315300453443 is a wasteful number, since it uses less digits than its factorization.

123315300453443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534987.

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

Adding to 123315300453443 its reverse (344354003513321), we get a palindrome (467669303966764).

The spelling of 123315300453443 in words is "one hundred twenty-three trillion, three hundred fifteen billion, three hundred million, four hundred fifty-three thousand, four hundred forty-three".