31023200234321 has 2 divisors, whose sum is σ = 31023200234322. Its totient is φ = 31023200234320.

The previous prime is 31023200234287. The next prime is 31023200234353. The reversal of 31023200234321 is 12343200232013.

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., 29163358896721 + 1859841337600 = 5400311^2 + 1363760^2 .

It is a cyclic number.

It is not a de Polignac number, because 31023200234321 - 2¹⁰ = 31023200233297 is a prime.

It is not a weakly prime, because it can be changed into another prime (31023200234921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15511600117160 + 15511600117161.

It is an arithmetic number, because the mean of its divisors is an integer number (15511600117161).

Almost surely, 2^{31023200234321} is an apocalyptic number.

It is an amenable number.

31023200234321 is a deficient number, since it is larger than the sum of its proper divisors (1).

31023200234321 is an equidigital number, since it uses as much as digits as its factorization.

31023200234321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 31023200234321 its reverse (12343200232013), we get a palindrome (43366400466334).

The spelling of 31023200234321 in words is "thirty-one trillion, twenty-three billion, two hundred million, two hundred thirty-four thousand, three hundred twenty-one".