33423421421321 has 4 divisors (see below), whose sum is σ = 34575953194500. Its totient is φ = 32270889648144.

The previous prime is 33423421421317. The next prime is 33423421421333. The reversal of 33423421421321 is 12312412432433.

It is a happy number.

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 28094918615296 + 5328502806025 = 5300464^2 + 2308355^2 .

It is a cyclic number.

It is not a de Polignac number, because 33423421421321 - 2² = 33423421421317 is a prime.

It is a super-2 number, since 2×33423421421321² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33423421421371) 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, 576265886546 + ... + 576265886603.

It is an arithmetic number, because the mean of its divisors is an integer number (8643988298625).

Almost surely, 2^{33423421421321} is an apocalyptic number.

It is an amenable number.

33423421421321 is a deficient number, since it is larger than the sum of its proper divisors (1152531773179).

33423421421321 is a wasteful number, since it uses less digits than its factorization.

33423421421321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152531773178.

The product of its digits is 82944, while the sum is 35.

Adding to 33423421421321 its reverse (12312412432433), we get a palindrome (45735833853754).

The spelling of 33423421421321 in words is "thirty-three trillion, four hundred twenty-three billion, four hundred twenty-one million, four hundred twenty-one thousand, three hundred twenty-one".