331433334121 has 2 divisors, whose sum is σ = 331433334122. Its totient is φ = 331433334120.

The previous prime is 331433334101. The next prime is 331433334161. The reversal of 331433334121 is 121433334133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 217230566400 + 114202767721 = 466080^2 + 337939^2 .

It is an emirp because it is prime and its reverse (121433334133) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 331433334121 - 2¹³ = 331433325929 is a prime.

It is not a weakly prime, because it can be changed into another prime (331433334101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165716667060 + 165716667061.

It is an arithmetic number, because the mean of its divisors is an integer number (165716667061).

Almost surely, 2^331433334121 is an apocalyptic number.

It is an amenable number.

331433334121 is a deficient number, since it is larger than the sum of its proper divisors (1).

331433334121 is an equidigital number, since it uses as much as digits as its factorization.

331433334121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 31.

Adding to 331433334121 its reverse (121433334133), we get a palindrome (452866668254).

The spelling of 331433334121 in words is "three hundred thirty-one billion, four hundred thirty-three million, three hundred thirty-four thousand, one hundred twenty-one".