421443330023 has 8 divisors (see below), whose sum is σ = 447264685728. Its totient is φ = 395736482304.

The previous prime is 421443330013. The next prime is 421443330029. The reversal of 421443330023 is 320033344124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 421443330023 - 2¹⁴ = 421443313639 is a prime.

It is a super-2 number, since 2×421443330023² (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 (421443330029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28619411 + ... + 28634132.

It is an arithmetic number, because the mean of its divisors is an integer number (55908085716).

Almost surely, 2^421443330023 is an apocalyptic number.

421443330023 is a deficient number, since it is larger than the sum of its proper divisors (25821355705).

421443330023 is a wasteful number, since it uses less digits than its factorization.

421443330023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57253993.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 421443330023 its reverse (320033344124), we get a palindrome (741476674147).

The spelling of 421443330023 in words is "four hundred twenty-one billion, four hundred forty-three million, three hundred thirty thousand, twenty-three".