123000401 has 4 divisors (see below), whose sum is σ = 124685412. Its totient is φ = 121315392.

The previous prime is 123000391. The next prime is 123000419. The reversal of 123000401 is 104000321.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 83247376 + 39753025 = 9124^2 + 6305^2 .

It is a cyclic number.

It is not a de Polignac number, because 123000401 - 2¹⁸ = 122738257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123000421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 842396 + ... + 842541.

It is an arithmetic number, because the mean of its divisors is an integer number (31171353).

Almost surely, 2^123000401 is an apocalyptic number.

It is an amenable number.

123000401 is a deficient number, since it is larger than the sum of its proper divisors (1685011).

123000401 is an equidigital number, since it uses as much as digits as its factorization.

123000401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1685010.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 123000401 is about 11090.5545848709. The cubic root of 123000401 is about 497.3195237732.

Adding to 123000401 its reverse (104000321), we get a palindrome (227000722).

The spelling of 123000401 in words is "one hundred twenty-three million, four hundred one", and thus it is an aban number.