123320232432345 has 16 divisors (see below), whose sum is σ = 212490246652992. Its totient is φ = 60711499043520.

The previous prime is 123320232432343. The next prime is 123320232432413. The reversal of 123320232432345 is 543234232023321.

It is not a de Polignac number, because 123320232432345 - 2¹ = 123320232432343 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (123320232432343) 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, 316205723991 + ... + 316205724380.

It is an arithmetic number, because the mean of its divisors is an integer number (13280640415812).

Almost surely, 2^{123320232432345} is an apocalyptic number.

123320232432345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123320232432345 is a deficient number, since it is larger than the sum of its proper divisors (89170014220647).

123320232432345 is a wasteful number, since it uses less digits than its factorization.

123320232432345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632411448392.

The product of its (nonzero) digits is 622080, while the sum is 39.

Adding to 123320232432345 its reverse (543234232023321), we get a palindrome (666554464455666).

The spelling of 123320232432345 in words is "one hundred twenty-three trillion, three hundred twenty billion, two hundred thirty-two million, four hundred thirty-two thousand, three hundred forty-five".