424201230121 has 4 divisors (see below), whose sum is σ = 424211562244. Its totient is φ = 424190898000.

The previous prime is 424201230109. The next prime is 424201230149. The reversal of 424201230121 is 121032102424.

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 156978402025 + 267222828096 = 396205^2 + 516936^2 .

It is a cyclic number.

It is not a de Polignac number, because 424201230121 - 2⁹ = 424201229609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 424201230092 and 424201230101.

It is not an unprimeable number, because it can be changed into a prime (424201230151) 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, 5104230 + ... + 5186671.

It is an arithmetic number, because the mean of its divisors is an integer number (106052890561).

Almost surely, 2^424201230121 is an apocalyptic number.

It is an amenable number.

424201230121 is a deficient number, since it is larger than the sum of its proper divisors (10332123).

424201230121 is a wasteful number, since it uses less digits than its factorization.

424201230121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10332122.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 424201230121 its reverse (121032102424), we get a palindrome (545233332545).

The spelling of 424201230121 in words is "four hundred twenty-four billion, two hundred one million, two hundred thirty thousand, one hundred twenty-one".