31023321020243 has 2 divisors, whose sum is σ = 31023321020244. Its totient is φ = 31023321020242.

The previous prime is 31023321020129. The next prime is 31023321020249. The reversal of 31023321020243 is 34202012332013.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31023321020243 - 2¹² = 31023321016147 is a prime.

It is not a weakly prime, because it can be changed into another prime (31023321020249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15511660510121 + 15511660510122.

It is an arithmetic number, because the mean of its divisors is an integer number (15511660510122).

Almost surely, 2^{31023321020243} is an apocalyptic number.

31023321020243 is a deficient number, since it is larger than the sum of its proper divisors (1).

31023321020243 is an equidigital number, since it uses as much as digits as its factorization.

31023321020243 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 31023321020243 its reverse (34202012332013), we get a palindrome (65225333352256).

The spelling of 31023321020243 in words is "thirty-one trillion, twenty-three billion, three hundred twenty-one million, twenty thousand, two hundred forty-three".