424333041421 has 4 divisors (see below), whose sum is σ = 425241677952. Its totient is φ = 423424404892.

The previous prime is 424333041337. The next prime is 424333041427. The reversal of 424333041421 is 124140333424.

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 424333041421 - 2²³ = 424324652813 is a prime.

It is a super-2 number, since 2×424333041421² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424333041427) 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, 454317565 + ... + 454318498.

It is an arithmetic number, because the mean of its divisors is an integer number (106310419488).

Almost surely, 2^424333041421 is an apocalyptic number.

It is an amenable number.

424333041421 is a deficient number, since it is larger than the sum of its proper divisors (908636531).

424333041421 is an equidigital number, since it uses as much as digits as its factorization.

424333041421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908636530.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 424333041421 its reverse (124140333424), we get a palindrome (548473374845).

The spelling of 424333041421 in words is "four hundred twenty-four billion, three hundred thirty-three million, forty-one thousand, four hundred twenty-one".