124123001 has 4 divisors (see below), whose sum is σ = 131424372. Its totient is φ = 116821632.

The previous prime is 124122997. The next prime is 124123003. The reversal of 124123001 is 100321421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100321421 = 53 ⋅1892857.

It can be written as a sum of positive squares in 2 ways, for example, as 54834025 + 69288976 = 7405^2 + 8324^2 .

It is a cyclic number.

It is not a de Polignac number, because 124123001 - 2² = 124122997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124123003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3650660 + ... + 3650693.

It is an arithmetic number, because the mean of its divisors is an integer number (32856093).

Almost surely, 2^124123001 is an apocalyptic number.

It is an amenable number.

124123001 is a deficient number, since it is larger than the sum of its proper divisors (7301371).

124123001 is an equidigital number, since it uses as much as digits as its factorization.

124123001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7301370.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 124123001 is about 11141.0502646743. The cubic root of 124123001 is about 498.8279226161.

Adding to 124123001 its reverse (100321421), we get a palindrome (224444422).

It can be divided in two parts, 1241 and 23001, that added together give a palindrome (24242).

The spelling of 124123001 in words is "one hundred twenty-four million, one hundred twenty-three thousand, one".