421042321233 has 24 divisors (see below), whose sum is σ = 620946641952. Its totient is φ = 274858862208.

The previous prime is 421042321181. The next prime is 421042321261. The reversal of 421042321233 is 332123240124.

421042321233 is a `hidden beast` number, since 4 + 2 + 1 + 0 + 423 + 2 + 1 + 233 = 666.

It is not a de Polignac number, because 421042321233 - 2⁶ = 421042321169 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 421042321197 and 421042321206.

It is not an unprimeable number, because it can be changed into a prime (421042321333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2409591 + ... + 2578412.

It is an arithmetic number, because the mean of its divisors is an integer number (25872776748).

Almost surely, 2^421042321233 is an apocalyptic number.

It is an amenable number.

421042321233 is a deficient number, since it is larger than the sum of its proper divisors (199904320719).

421042321233 is a wasteful number, since it uses less digits than its factorization.

421042321233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4988205 (or 4988202 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 421042321233 its reverse (332123240124), we get a palindrome (753165561357).

The spelling of 421042321233 in words is "four hundred twenty-one billion, forty-two million, three hundred twenty-one thousand, two hundred thirty-three".