122343123215513 has 4 divisors (see below), whose sum is σ = 122343182002560. Its totient is φ = 122343064428468.

The previous prime is 122343123215507. The next prime is 122343123215543. The reversal of 122343123215513 is 315512321343221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122343123215513 - 2⁴⁰ = 121243611587737 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (122343123215543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26152733 + ... + 30473786.

It is an arithmetic number, because the mean of its divisors is an integer number (30585795500640).

Almost surely, 2^{122343123215513} is an apocalyptic number.

It is an amenable number.

122343123215513 is a deficient number, since it is larger than the sum of its proper divisors (58787047).

122343123215513 is an equidigital number, since it uses as much as digits as its factorization.

122343123215513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58787046.

The product of its digits is 129600, while the sum is 38.

Adding to 122343123215513 its reverse (315512321343221), we get a palindrome (437855444558734).

The spelling of 122343123215513 in words is "one hundred twenty-two trillion, three hundred forty-three billion, one hundred twenty-three million, two hundred fifteen thousand, five hundred thirteen".