122663641253 has 16 divisors (see below), whose sum is σ = 132333600960. Its totient is φ = 113273899776.

The previous prime is 122663641213. The next prime is 122663641259. The reversal of 122663641253 is 352146366221.

It is a cyclic number.

It is not a de Polignac number, because 122663641253 - 2⁸ = 122663640997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122663641253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122663641259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 407651 + ... + 641487.

It is an arithmetic number, because the mean of its divisors is an integer number (8270850060).

Almost surely, 2^122663641253 is an apocalyptic number.

It is an amenable number.

122663641253 is a deficient number, since it is larger than the sum of its proper divisors (9669959707).

122663641253 is a wasteful number, since it uses less digits than its factorization.

122663641253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234436.

The product of its digits is 311040, while the sum is 41.

The spelling of 122663641253 in words is "one hundred twenty-two billion, six hundred sixty-three million, six hundred forty-one thousand, two hundred fifty-three".