122504354345 has 4 divisors (see below), whose sum is σ = 147005225220. Its totient is φ = 98003483472.

The previous prime is 122504354263. The next prime is 122504354353. The reversal of 122504354345 is 543453405221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 543453405221 = 312737 ⋅1737733.

It can be written as a sum of positive squares in 2 ways, for example, as 79517796121 + 42986558224 = 281989^2 + 207332^2 .

It is a cyclic number.

It is not a de Polignac number, because 122504354345 - 2²⁴ = 122487577129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122504354299 and 122504354308.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12250435430 + ... + 12250435439.

It is an arithmetic number, because the mean of its divisors is an integer number (36751306305).

Almost surely, 2^122504354345 is an apocalyptic number.

It is an amenable number.

122504354345 is a deficient number, since it is larger than the sum of its proper divisors (24500870875).

122504354345 is an equidigital number, since it uses as much as digits as its factorization.

122504354345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24500870874.

The product of its (nonzero) digits is 288000, while the sum is 38.

Adding to 122504354345 its reverse (543453405221), we get a palindrome (665957759566).

The spelling of 122504354345 in words is "one hundred twenty-two billion, five hundred four million, three hundred fifty-four thousand, three hundred forty-five".