124120401 has 4 divisors (see below), whose sum is σ = 165493872. Its totient is φ = 82746932.

The previous prime is 124120391. The next prime is 124120429. The reversal of 124120401 is 104021421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 124120401 - 2⁹ = 124119889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (124120471) 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, 20686731 + ... + 20686736.

It is an arithmetic number, because the mean of its divisors is an integer number (41373468).

Almost surely, 2^124120401 is an apocalyptic number.

It is an amenable number.

124120401 is a deficient number, since it is larger than the sum of its proper divisors (41373471).

124120401 is an equidigital number, since it uses as much as digits as its factorization.

124120401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41373470.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 124120401 is about 11140.9335784754. The cubic root of 124120401 is about 498.8244396150.

Adding to 124120401 its reverse (104021421), we get a palindrome (228141822).

The spelling of 124120401 in words is "one hundred twenty-four million, one hundred twenty thousand, four hundred one".