421320433033 has 4 divisors (see below), whose sum is σ = 421975675408. Its totient is φ = 420665190660.

The previous prime is 421320433003. The next prime is 421320433067. The reversal of 421320433033 is 330334023124.

It is a happy number.

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 421320433033 - 2³⁷ = 283881479561 is a prime.

It is a super-2 number, since 2×421320433033² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 421320432992 and 421320433010.

It is not an unprimeable number, because it can be changed into a prime (421320433003) 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, 327620223 + ... + 327621508.

It is an arithmetic number, because the mean of its divisors is an integer number (105493918852).

Almost surely, 2^421320433033 is an apocalyptic number.

It is an amenable number.

421320433033 is a deficient number, since it is larger than the sum of its proper divisors (655242375).

421320433033 is an equidigital number, since it uses as much as digits as its factorization.

421320433033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655242374.

The product of its (nonzero) digits is 15552, while the sum is 28.

Adding to 421320433033 its reverse (330334023124), we get a palindrome (751654456157).

The spelling of 421320433033 in words is "four hundred twenty-one billion, three hundred twenty million, four hundred thirty-three thousand, thirty-three".