31322302213273 has 2 divisors, whose sum is σ = 31322302213274. Its totient is φ = 31322302213272.

The previous prime is 31322302213187. The next prime is 31322302213369. The reversal of 31322302213273 is 37231220322313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24732797811264 + 6589504402009 = 4973208^2 + 2567003^2 .

It is a cyclic number.

It is not a de Polignac number, because 31322302213273 - 2²⁵ = 31322268658841 is a prime.

It is not a weakly prime, because it can be changed into another prime (31322302213973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15661151106636 + 15661151106637.

It is an arithmetic number, because the mean of its divisors is an integer number (15661151106637).

Almost surely, 2^{31322302213273} is an apocalyptic number.

It is an amenable number.

31322302213273 is a deficient number, since it is larger than the sum of its proper divisors (1).

31322302213273 is an equidigital number, since it uses as much as digits as its factorization.

31322302213273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 34.

Adding to 31322302213273 its reverse (37231220322313), we get a palindrome (68553522535586).

The spelling of 31322302213273 in words is "thirty-one trillion, three hundred twenty-two billion, three hundred two million, two hundred thirteen thousand, two hundred seventy-three".