33430013443121 has 2 divisors, whose sum is σ = 33430013443122. Its totient is φ = 33430013443120.

The previous prime is 33430013443111. The next prime is 33430013443147. The reversal of 33430013443121 is 12134431003433.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24032349198400 + 9397664244721 = 4902280^2 + 3065561^2 .

It is a cyclic number.

It is not a de Polignac number, because 33430013443121 - 2¹⁰ = 33430013442097 is a prime.

It is a super-2 number, since 2×33430013443121² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33430013443111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16715006721560 + 16715006721561.

It is an arithmetic number, because the mean of its divisors is an integer number (16715006721561).

Almost surely, 2^{33430013443121} is an apocalyptic number.

It is an amenable number.

33430013443121 is a deficient number, since it is larger than the sum of its proper divisors (1).

33430013443121 is an equidigital number, since it uses as much as digits as its factorization.

33430013443121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 32.

Adding to 33430013443121 its reverse (12134431003433), we get a palindrome (45564444446554).

The spelling of 33430013443121 in words is "thirty-three trillion, four hundred thirty billion, thirteen million, four hundred forty-three thousand, one hundred twenty-one".