123104140140345 has 128 divisors (see below), whose sum is σ = 244265118289920. Its totient is φ = 51553452672000.

The previous prime is 123104140140341. The next prime is 123104140140353. The reversal of 123104140140345 is 543041041401321.

It is not a de Polignac number, because 123104140140345 - 2² = 123104140140341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123104140140341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 94255786 + ... + 95552924.

It is an arithmetic number, because the mean of its divisors is an integer number (1908321236640).

Almost surely, 2^{123104140140345} is an apocalyptic number.

123104140140345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123104140140345 is a deficient number, since it is larger than the sum of its proper divisors (121160978149575).

123104140140345 is a wasteful number, since it uses less digits than its factorization.

123104140140345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1297695.

The product of its (nonzero) digits is 23040, while the sum is 33.

Adding to 123104140140345 its reverse (543041041401321), we get a palindrome (666145181541666).

The spelling of 123104140140345 in words is "one hundred twenty-three trillion, one hundred four billion, one hundred forty million, one hundred forty thousand, three hundred forty-five".