124505201321 has 4 divisors (see below), whose sum is σ = 124706341200. Its totient is φ = 124304061444.

The previous prime is 124505201311. The next prime is 124505201323. The reversal of 124505201321 is 123102505421.

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 124505201321 - 2⁶ = 124505201257 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 (124505201323) 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, 100569011 + ... + 100570248.

It is an arithmetic number, because the mean of its divisors is an integer number (31176585300).

Almost surely, 2^124505201321 is an apocalyptic number.

It is an amenable number.

124505201321 is a deficient number, since it is larger than the sum of its proper divisors (201139879).

124505201321 is an equidigital number, since it uses as much as digits as its factorization.

124505201321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201139878.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 124505201321 its reverse (123102505421), we get a palindrome (247607706742).

The spelling of 124505201321 in words is "one hundred twenty-four billion, five hundred five million, two hundred one thousand, three hundred twenty-one".