123321461 has 2 divisors, whose sum is σ = 123321462. Its totient is φ = 123321460.

The previous prime is 123321437. The next prime is 123321511. The reversal of 123321461 is 164123321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122788561 + 532900 = 11081^2 + 730^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123321461 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123321161) 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, 61660730 + 61660731.

It is an arithmetic number, because the mean of its divisors is an integer number (61660731).

Almost surely, 2^123321461 is an apocalyptic number.

It is an amenable number.

123321461 is a deficient number, since it is larger than the sum of its proper divisors (1).

123321461 is an equidigital number, since it uses as much as digits as its factorization.

123321461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 23.

The square root of 123321461 is about 11105.0196307796. The cubic root of 123321461 is about 497.7518548366.

Adding to 123321461 its reverse (164123321), we get a palindrome (287444782).

The spelling of 123321461 in words is "one hundred twenty-three million, three hundred twenty-one thousand, four hundred sixty-one".