123022001 has 4 divisors (see below), whose sum is σ = 123230052. Its totient is φ = 122813952.

The previous prime is 123021989. The next prime is 123022007. The reversal of 123022001 is 100220321.

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 56175025 + 66846976 = 7495^2 + 8176^2 .

It is a cyclic number.

It is not a de Polignac number, because 123022001 - 2⁶ = 123021937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (123022007) 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, 103136 + ... + 104321.

It is an arithmetic number, because the mean of its divisors is an integer number (30807513).

Almost surely, 2^123022001 is an apocalyptic number.

It is an amenable number.

123022001 is a deficient number, since it is larger than the sum of its proper divisors (208051).

123022001 is an equidigital number, since it uses as much as digits as its factorization.

123022001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208050.

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

The square root of 123022001 is about 11091.5283437406. The cubic root of 123022001 is about 497.3486333611.

Adding to 123022001 its reverse (100220321), we get a palindrome (223242322).

The spelling of 123022001 in words is "one hundred twenty-three million, twenty-two thousand, one".