123200477 has 2 divisors, whose sum is σ = 123200478. Its totient is φ = 123200476.

The previous prime is 123200431. The next prime is 123200533. The reversal of 123200477 is 774002321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106275481 + 16924996 = 10309^2 + 4114^2 .

It is an emirp because it is prime and its reverse (774002321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123200477 - 2¹⁴ = 123184093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123203477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61600238 + 61600239.

It is an arithmetic number, because the mean of its divisors is an integer number (61600239).

Almost surely, 2^123200477 is an apocalyptic number.

It is an amenable number.

123200477 is a deficient number, since it is larger than the sum of its proper divisors (1).

123200477 is an equidigital number, since it uses as much as digits as its factorization.

123200477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 123200477 is about 11099.5710277470. The cubic root of 123200477 is about 497.5890291248.

Adding to 123200477 its reverse (774002321), we get a palindrome (897202798).

The spelling of 123200477 in words is "one hundred twenty-three million, two hundred thousand, four hundred seventy-seven".