331561245233 has 2 divisors, whose sum is σ = 331561245234. Its totient is φ = 331561245232.

The previous prime is 331561245229. The next prime is 331561245241. The reversal of 331561245233 is 332542165133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 330841235344 + 720009889 = 575188^2 + 26833^2 .

It is a cyclic number.

It is not a de Polignac number, because 331561245233 - 2² = 331561245229 is a prime.

It is a super-3 number, since 3×331561245233³ (a number of 36 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (331561245263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165780622616 + 165780622617.

It is an arithmetic number, because the mean of its divisors is an integer number (165780622617).

Almost surely, 2^331561245233 is an apocalyptic number.

It is an amenable number.

331561245233 is a deficient number, since it is larger than the sum of its proper divisors (1).

331561245233 is an equidigital number, since it uses as much as digits as its factorization.

331561245233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 194400, while the sum is 38.

The spelling of 331561245233 in words is "three hundred thirty-one billion, five hundred sixty-one million, two hundred forty-five thousand, two hundred thirty-three".