123315405154453 has 8 divisors (see below), whose sum is σ = 126183355768800. Its totient is φ = 120447461380848.

The previous prime is 123315405154439. The next prime is 123315405154457. The reversal of 123315405154453 is 354451504513321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123315405154453 - 2⁵ = 123315405154421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123315405154457) 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, 62309178 + ... + 64257796.

It is an arithmetic number, because the mean of its divisors is an integer number (15772919471100).

Almost surely, 2^{123315405154453} is an apocalyptic number.

It is an amenable number.

123315405154453 is a deficient number, since it is larger than the sum of its proper divisors (2867950614347).

123315405154453 is a wasteful number, since it uses less digits than its factorization.

123315405154453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3420371.

The product of its (nonzero) digits is 2160000, while the sum is 46.

Adding to 123315405154453 its reverse (354451504513321), we get a palindrome (477766909667774).

The spelling of 123315405154453 in words is "one hundred twenty-three trillion, three hundred fifteen billion, four hundred five million, one hundred fifty-four thousand, four hundred fifty-three".