123303315454255 has 4 divisors (see below), whose sum is σ = 147963978545112. Its totient is φ = 98642652363400.

The previous prime is 123303315454237. The next prime is 123303315454261. The reversal of 123303315454255 is 552454513303321.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 123303315454255 - 2¹³ = 123303315446063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12330331545421 + ... + 12330331545430.

It is an arithmetic number, because the mean of its divisors is an integer number (36990994636278).

Almost surely, 2^{123303315454255} is an apocalyptic number.

123303315454255 is a deficient number, since it is larger than the sum of its proper divisors (24660663090857).

123303315454255 is an equidigital number, since it uses as much as digits as its factorization.

123303315454255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24660663090856.

The product of its (nonzero) digits is 3240000, while the sum is 46.

Adding to 123303315454255 its reverse (552454513303321), we get a palindrome (675757828757576).

The spelling of 123303315454255 in words is "one hundred twenty-three trillion, three hundred three billion, three hundred fifteen million, four hundred fifty-four thousand, two hundred fifty-five".