123361214505 has 32 divisors (see below), whose sum is σ = 201159490176. Its totient is φ = 64532841984.

The previous prime is 123361214497. The next prime is 123361214567. The reversal of 123361214505 is 505412163321.

It is not a de Polignac number, because 123361214505 - 2³ = 123361214497 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3026994 + ... + 3067476.

It is an arithmetic number, because the mean of its divisors is an integer number (6286234068).

Almost surely, 2^123361214505 is an apocalyptic number.

123361214505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123361214505 is a deficient number, since it is larger than the sum of its proper divisors (77798275671).

123361214505 is a wasteful number, since it uses less digits than its factorization.

123361214505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44377.

The product of its (nonzero) digits is 21600, while the sum is 33.

Adding to 123361214505 its reverse (505412163321), we get a palindrome (628773377826).

The spelling of 123361214505 in words is "one hundred twenty-three billion, three hundred sixty-one million, two hundred fourteen thousand, five hundred five".