122655520523 has 4 divisors (see below), whose sum is σ = 129870551160. Its totient is φ = 115440489888.

The previous prime is 122655520517. The next prime is 122655520531. The reversal of 122655520523 is 325025556221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 325025556221 = 21727 ⋅14959523.

It is a cyclic number.

It is not a de Polignac number, because 122655520523 - 2¹⁰ = 122655519499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122655520573) 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, 3607515293 + ... + 3607515326.

It is an arithmetic number, because the mean of its divisors is an integer number (32467637790).

Almost surely, 2^122655520523 is an apocalyptic number.

122655520523 is a deficient number, since it is larger than the sum of its proper divisors (7215030637).

122655520523 is an equidigital number, since it uses as much as digits as its factorization.

122655520523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7215030636.

The product of its (nonzero) digits is 180000, while the sum is 38.

The spelling of 122655520523 in words is "one hundred twenty-two billion, six hundred fifty-five million, five hundred twenty thousand, five hundred twenty-three".