31316132063873 has 2 divisors, whose sum is σ = 31316132063874. Its totient is φ = 31316132063872.

The previous prime is 31316132063837. The next prime is 31316132063899. The reversal of 31316132063873 is 37836023161313.

Together with previous prime (31316132063837) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28090720804624 + 3225411259249 = 5300068^2 + 1795943^2 .

It is a cyclic number.

It is not a de Polignac number, because 31316132063873 - 2³⁸ = 31041254156929 is a prime.

It is not a weakly prime, because it can be changed into another prime (31316132063273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15658066031936 + 15658066031937.

It is an arithmetic number, because the mean of its divisors is an integer number (15658066031937).

Almost surely, 2^{31316132063873} is an apocalyptic number.

It is an amenable number.

31316132063873 is a deficient number, since it is larger than the sum of its proper divisors (1).

31316132063873 is an equidigital number, since it uses as much as digits as its factorization.

31316132063873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 979776, while the sum is 47.

The spelling of 31316132063873 in words is "thirty-one trillion, three hundred sixteen billion, one hundred thirty-two million, sixty-three thousand, eight hundred seventy-three".