123107057 has 2 divisors, whose sum is σ = 123107058. Its totient is φ = 123107056.

The previous prime is 123107041. The next prime is 123107077. The reversal of 123107057 is 750701321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119924401 + 3182656 = 10951^2 + 1784^2 .

It is an emirp because it is prime and its reverse (750701321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123107057 - 2⁴ = 123107041 is a prime.

It is equal to p_7008407 and since 123107057 and 7008407 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (123107027) 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 as a sum of consecutive naturals, namely, 61553528 + 61553529.

It is an arithmetic number, because the mean of its divisors is an integer number (61553529).

Almost surely, 2^123107057 is an apocalyptic number.

It is an amenable number.

123107057 is a deficient number, since it is larger than the sum of its proper divisors (1).

123107057 is an equidigital number, since it uses as much as digits as its factorization.

123107057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1470, while the sum is 26.

The square root of 123107057 is about 11095.3619589448. The cubic root of 123107057 is about 497.4632273351.

Adding to 123107057 its reverse (750701321), we get a palindrome (873808378).

The spelling of 123107057 in words is "one hundred twenty-three million, one hundred seven thousand, fifty-seven".