123575450773 has 2 divisors, whose sum is σ = 123575450774. Its totient is φ = 123575450772.

The previous prime is 123575450749. The next prime is 123575450777. The reversal of 123575450773 is 377054575321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119399964849 + 4175485924 = 345543^2 + 64618^2 .

It is a cyclic number.

It is not a de Polignac number, because 123575450773 - 2²¹ = 123573353621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123575450777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61787725386 + 61787725387.

It is an arithmetic number, because the mean of its divisors is an integer number (61787725387).

Almost surely, 2^123575450773 is an apocalyptic number.

It is an amenable number.

123575450773 is a deficient number, since it is larger than the sum of its proper divisors (1).

123575450773 is an equidigital number, since it uses as much as digits as its factorization.

123575450773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3087000, while the sum is 49.

The spelling of 123575450773 in words is "one hundred twenty-three billion, five hundred seventy-five million, four hundred fifty thousand, seven hundred seventy-three".