123001 has 2 divisors, whose sum is σ = 123002. Its totient is φ = 123000.

The previous prime is 122971. The next prime is 123007. The reversal of 123001 is 100321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90601 + 32400 = 301^2 + 180^2 .

It is a cyclic number.

It is not a de Polignac number, because 123001 - 2⁹ = 122489 is a prime.

123001 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (123007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61500 + 61501.

It is an arithmetic number, because the mean of its divisors is an integer number (61501).

2¹²³⁰⁰¹ is an apocalyptic number.

It is an amenable number.

123001 is a deficient number, since it is larger than the sum of its proper divisors (1).

123001 is an equidigital number, since it uses as much as digits as its factorization.

123001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6, while the sum is 7.

The square root of 123001 is about 350.7149839970. The cubic root of 123001 is about 49.7320331071.

Adding to 123001 its reverse (100321), we get a palindrome (223322).

The spelling of 123001 in words is "one hundred twenty-three thousand, one", and thus it is an iban number.