122563853969 has 2 divisors, whose sum is σ = 122563853970. Its totient is φ = 122563853968.

The previous prime is 122563853903. The next prime is 122563854011. The reversal of 122563853969 is 969358365221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106710022225 + 15853831744 = 326665^2 + 125912^2 .

It is an emirp because it is prime and its reverse (969358365221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122563853969 - 2¹² = 122563849873 is a prime.

It is a super-3 number, since 3×122563853969³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (122563853369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61281926984 + 61281926985.

It is an arithmetic number, because the mean of its divisors is an integer number (61281926985).

Almost surely, 2^122563853969 is an apocalyptic number.

It is an amenable number.

122563853969 is a deficient number, since it is larger than the sum of its proper divisors (1).

122563853969 is an equidigital number, since it uses as much as digits as its factorization.

122563853969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20995200, while the sum is 59.

The spelling of 122563853969 in words is "one hundred twenty-two billion, five hundred sixty-three million, eight hundred fifty-three thousand, nine hundred sixty-nine".