122343123215512 has 8 divisors (see below), whose sum is σ = 229393356029100. Its totient is φ = 61171561607752.

The previous prime is 122343123215507. The next prime is 122343123215543. The reversal of 122343123215512 is 215512321343221.

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 7646445200962 + ... + 7646445200977.

Almost surely, 2^{122343123215512} is an apocalyptic number.

It is an amenable number.

122343123215512 is a deficient number, since it is larger than the sum of its proper divisors (107050232813588).

122343123215512 is a wasteful number, since it uses less digits than its factorization.

122343123215512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15292890401945 (or 15292890401941 counting only the distinct ones).

The product of its digits is 86400, while the sum is 37.

Adding to 122343123215512 its reverse (215512321343221), we get a palindrome (337855444558733).

The spelling of 122343123215512 in words is "one hundred twenty-two trillion, three hundred forty-three billion, one hundred twenty-three million, two hundred fifteen thousand, five hundred twelve".