31322023273 has 2 divisors, whose sum is σ = 31322023274. Its totient is φ = 31322023272.

The previous prime is 31322023217. The next prime is 31322023307. The reversal of 31322023273 is 37232022313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16437291264 + 14884732009 = 128208^2 + 122003^2 .

It is a cyclic number.

It is not a de Polignac number, because 31322023273 - 2¹⁷ = 31321892201 is a prime.

It is not a weakly prime, because it can be changed into another prime (31322023573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15661011636 + 15661011637.

It is an arithmetic number, because the mean of its divisors is an integer number (15661011637).

Almost surely, 2^31322023273 is an apocalyptic number.

It is an amenable number.

31322023273 is a deficient number, since it is larger than the sum of its proper divisors (1).

31322023273 is an equidigital number, since it uses as much as digits as its factorization.

31322023273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 28.

Adding to 31322023273 its reverse (37232022313), we get a palindrome (68554045586).

The spelling of 31322023273 in words is "thirty-one billion, three hundred twenty-two million, twenty-three thousand, two hundred seventy-three".