31030234441873 has 2 divisors, whose sum is σ = 31030234441874. Its totient is φ = 31030234441872.

The previous prime is 31030234441841. The next prime is 31030234441909. The reversal of 31030234441873 is 37814443203013.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26769779298304 + 4260455143569 = 5173952^2 + 2064087^2 .

It is an emirp because it is prime and its reverse (37814443203013) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31030234441873 - 2⁵ = 31030234441841 is a prime.

It is not a weakly prime, because it can be changed into another prime (31030234441823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15515117220936 + 15515117220937.

It is an arithmetic number, because the mean of its divisors is an integer number (15515117220937).

Almost surely, 2^{31030234441873} is an apocalyptic number.

It is an amenable number.

31030234441873 is a deficient number, since it is larger than the sum of its proper divisors (1).

31030234441873 is an equidigital number, since it uses as much as digits as its factorization.

31030234441873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 580608, while the sum is 43.

Adding to 31030234441873 its reverse (37814443203013), we get a palindrome (68844677644886).

The spelling of 31030234441873 in words is "thirty-one trillion, thirty billion, two hundred thirty-four million, four hundred forty-one thousand, eight hundred seventy-three".