123342032015 has 16 divisors (see below), whose sum is σ = 148489640832. Its totient is φ = 98354317824.

The previous prime is 123342031987. The next prime is 123342032039. The reversal of 123342032015 is 510230243321.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 123342032015 - 2⁶ = 123342031951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8345162 + ... + 8359928.

It is an arithmetic number, because the mean of its divisors is an integer number (9280602552).

Almost surely, 2^123342032015 is an apocalyptic number.

123342032015 is a deficient number, since it is larger than the sum of its proper divisors (25147608817).

123342032015 is a wasteful number, since it uses less digits than its factorization.

123342032015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20066.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 123342032015 its reverse (510230243321), we get a palindrome (633572275336).

The spelling of 123342032015 in words is "one hundred twenty-three billion, three hundred forty-two million, thirty-two thousand, fifteen".