123303031151205 has 16 divisors (see below), whose sum is σ = 198374821392384. Its totient is φ = 65398292763840.

The previous prime is 123303031151147. The next prime is 123303031151357. The reversal of 123303031151205 is 502151130303321.

It is not a de Polignac number, because 123303031151205 - 2⁶ = 123303031151141 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 22707737829 + ... + 22707743258.

It is an arithmetic number, because the mean of its divisors is an integer number (12398426337024).

Almost surely, 2^{123303031151205} is an apocalyptic number.

123303031151205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123303031151205 is a deficient number, since it is larger than the sum of its proper divisors (75071790241179).

123303031151205 is a wasteful number, since it uses less digits than its factorization.

123303031151205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45415481276.

The product of its (nonzero) digits is 8100, while the sum is 30.

Adding to 123303031151205 its reverse (502151130303321), we get a palindrome (625454161454526).

The spelling of 123303031151205 in words is "one hundred twenty-three trillion, three hundred three billion, thirty-one million, one hundred fifty-one thousand, two hundred five".