331023200221061 has 2 divisors, whose sum is σ = 331023200221062. Its totient is φ = 331023200221060.

The previous prime is 331023200221003. The next prime is 331023200221069. The reversal of 331023200221061 is 160122002320133.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 273341742302500 + 57681457918561 = 16533050^2 + 7594831^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331023200221061 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 331023200221061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (331023200221069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165511600110530 + 165511600110531.

It is an arithmetic number, because the mean of its divisors is an integer number (165511600110531).

Almost surely, 2^{331023200221061} is an apocalyptic number.

It is an amenable number.

331023200221061 is a deficient number, since it is larger than the sum of its proper divisors (1).

331023200221061 is an equidigital number, since it uses as much as digits as its factorization.

331023200221061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 331023200221061 its reverse (160122002320133), we get a palindrome (491145202541194).

The spelling of 331023200221061 in words is "three hundred thirty-one trillion, twenty-three billion, two hundred million, two hundred twenty-one thousand, sixty-one".